Century

20th Century

848 sourced events. Showing 313-336.

Events

20th Century Timeline

Military 20th Century Oceania

Guadalcanal Declared Secure Ending Pacific Battle

The Battle of Guadalcanal began in August 1942 as U.S. Marines landed to seize a strategic airfield in the Solomon Islands, marking the first major Allied offensive against Japan in the Pacific. Six months of brutal jungle fighting, naval clashes, and air battles followed amid harsh conditions and heavy casualties. On February 9, 1943, Allied authorities declared the island secure after Japanese forces completed their evacuation under cover of night. The victory halted Japanese expansion and secured supply lines toward Australia. It shifted momentum in the Pacific theater toward sustained Allied advances.

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Civil Rights 20th Century Europe

Gestapo Arrests White Rose Leaders Sophie and Hans Scholl

During World War II, a small group of students and professors at the University of Munich formed the White Rose resistance movement to oppose Nazi rule through nonviolent means. Inspired by philosophy, theology, and reports of atrocities, the group produced and distributed leaflets calling for sabotage of the war effort and an end to the regime. On February 18, 1943, siblings Hans and Sophie Scholl distributed copies of the sixth leaflet at the university, tossing remaining pamphlets from an atrium balcony. A janitor witnessed the act and alerted authorities, leading to their immediate arrest by the Gestapo along with seizure of incriminating materials. The arrests triggered further detentions of other members and a swift trial before the People’s Court. Sophie,...

Military 20th Century Oceania

Battle of the Bismarck Sea Begins

In early 1943, Japanese forces sought to reinforce their garrison at Lae, New Guinea, with thousands of troops and supplies to halt Allied advances in the Southwest Pacific. Allied codebreakers detected the convoy of eight transports and eight destroyers carrying about 6,900 soldiers. On March 2, U.S. Fifth Air Force and Royal Australian Air Force bombers and fighters began sustained attacks using new skip-bombing tactics after reconnaissance spotted the ships. Over the next two days the Allies sank all eight transports and four destroyers, shooting down supporting aircraft while suffering minimal losses. Follow-up strikes on March 4 targeted survivors in the water. Only about 1,200 Japanese troops reached Lae, ending seaborne reinforcement attempts.

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Military 20th Century Europe

Warsaw Ghetto Uprising Begins Against Nazis

Following the 1942 deportations that reduced the Warsaw Ghetto population from over 400,000 to around 60,000, Jewish underground groups including the ŻOB prepared defenses with smuggled weapons. On April 19, 1943—the eve of Passover—SS and police units under Jürgen Stroop entered the ghetto to deport remaining inhabitants to death camps. Fighters responded with coordinated gunfire, Molotov cocktails, and ambushes from rooftops and sewers, forcing the Germans to withdraw after suffering casualties on the first day. The uprising continued for nearly a month as Germans systematically burned buildings and flushed out bunkers, ultimately deporting or killing most survivors.

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Military 20th Century Europe

Allies Launch Invasion of Sicily in World War II

In 1943, after victories in North Africa, the Allies planned to open a new front in Europe by targeting the Axis-held island of Sicily as a stepping stone to Italy. Operation Husky involved over 3,000 ships and 160,000 troops from American, British, and Canadian forces under General Dwight D. Eisenhower. Airborne and glider operations began on the night of July 9 amid high winds that scattered troops, while the main amphibious landings occurred on July 10. Axis defenses, primarily Italian with some German units, were quickly overwhelmed in many sectors despite initial confusion. The campaign secured the island by mid-August.

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Military 20th Century Russia & Central Asia

Battle of Prokhorovka Fought in Kursk Offensive

In summer 1943, German forces launched Operation Citadel to pinch off the Kursk salient on the Eastern Front, aiming to regain initiative after Stalingrad. Soviet intelligence and defenses prepared a massive counterstroke. On July 12, the Soviet 5th Guards Tank Army under Pavel Rotmistrov launched a large-scale armored assault against the German II SS Panzer Corps near Prokhorovka village. The engagement featured hundreds of tanks clashing at close range in dust and smoke, with Soviet T-34s and German Panthers and Tigers trading fire throughout the day. Both sides suffered heavy losses, but the Soviet attack halted the German advance and forced a tactical withdrawal.

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Politics 20th Century Europe

Benito Mussolini Ousted by Grand Council and King

After Allied landings in Sicily and mounting war losses, dissent grew within Italy's Fascist leadership. On the night of July 24-25, the Grand Council of Fascism convened in Rome and passed a motion by Dino Grandi stripping Mussolini of command authority, returning powers to King Victor Emmanuel III. The following day, the king dismissed and arrested Mussolini during a meeting at the royal palace. Marshal Pietro Badoglio formed a new government that soon began secret armistice talks with the Allies. The coup ended two decades of Fascist dictatorship amid widespread public relief.

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Military 20th Century Oceania

PT-109 Sunk; Kennedy Saves Crew in Pacific

During World War II in the Solomon Islands campaign, U.S. Navy Lieutenant John F. Kennedy commanded the patrol torpedo boat PT-109 on nighttime operations against Japanese supply lines. In the early hours of August 2, 1943, the Japanese destroyer Amagiri rammed and split the vessel in two, killing two crew members instantly. The remaining eleven survivors clung to wreckage and swam to a nearby island, with Kennedy towing an injured sailor for hours despite his own back injury. The group survived on coconuts and rainwater until rescued days later after Kennedy carved a message on a coconut shell. The incident highlighted the dangers of small-boat warfare in the Pacific theater.

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Military 20th Century Europe

Allies Complete Conquest of Sicily in World War II

By mid-1943, the Allies sought to open a second front in Europe and relieve pressure on the Soviet Union while weakening Axis forces in the Mediterranean. Operation Husky began with landings on July 9-10 involving over 160,000 troops from the United States, Britain, and Canada under General Dwight D. Eisenhower. After weeks of intense fighting across varied terrain, U.S. forces under General George S. Patton raced British troops under General Bernard Montgomery toward the northeastern port of Messina. On August 17, 1943, Allied troops entered Messina, completing the 38-day campaign and securing the entire island. Although many German troops evacuated to the mainland, the victory forced Italian dictator Benito Mussolini's ouster days earlier and opened the way for the invasion...

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Military 20th Century Europe

Italy Announces Surrender to the Allies

After the July 1943 overthrow of Benito Mussolini, Italy's new government under Marshal Pietro Badoglio secretly negotiated with the Allies while still nominally allied with Germany. The Armistice of Cassibile was signed on September 3 but kept confidential to allow Allied landings. On September 8, 1943, General Dwight D. Eisenhower broadcast the announcement from Allied headquarters, followed by Badoglio's confirmation to the Italian public. German forces responded swiftly with Operation Achse, disarming Italian troops and occupying key areas. The announcement triggered immediate chaos in the Italian military and paved the way for the Allied invasion of the Italian mainland the next day.

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Military 20th Century Europe

Italy Switches Sides, Declares War on Germany

Following the Allied invasion of Sicily and the fall of Benito Mussolini's regime in July 1943, Italy's new government under Marshal Pietro Badoglio sought an armistice with the Allies while navigating occupation by German forces. On October 13, 1943, the Italian government formally declared war on Germany, its former Axis partner, and aligned with the Allies in the ongoing global conflict. This reversal came after secret negotiations and the public announcement of the armistice with the Western powers. Italian troops and partisans now fought alongside Allied forces against German units in Italy, turning former battlefields into a new front. The declaration complicated German strategy in southern Europe and bolstered the Allied advance northward.

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Politics 20th Century Middle East & North Africa

Cairo Conference Opens with Roosevelt, Churchill, Chiang

By late 1943, the Allies were coordinating strategy against the Axis powers in multiple theaters of World War II. U.S. President Franklin D. Roosevelt, British Prime Minister Winston Churchill, and Chinese leader Chiang Kai-shek gathered in Cairo, Egypt, beginning November 22 to discuss the Pacific war and postwar Asia. The leaders addressed military operations against Japan, supply issues in China, and territorial restorations after victory. They issued the Cairo Declaration committing to strip Japan of its conquests and support Chinese sovereignty. The meeting also boosted Chiang's international standing as a major Allied power. Discussions set the stage for the subsequent Tehran Conference with Stalin.

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Politics 20th Century Middle East & North Africa

Tehran Conference Opens with Big Three Leaders

By late 1943 the tide of World War II had turned against the Axis powers, yet the Allies still needed to coordinate strategy across distant fronts. On November 28, U.S. President Franklin D. Roosevelt, British Prime Minister Winston Churchill, and Soviet Premier Joseph Stalin met for the first time at the Soviet embassy in Tehran, Iran. Over four days they discussed the long-promised second front in western Europe, Soviet entry against Japan, and postwar arrangements for Germany and Eastern Europe. Stalin pressed for an invasion of France; the Western leaders sought Soviet assurances on Poland and the Baltic states.

Military 20th Century North America

Eisenhower Named Supreme Allied Commander for Overlord

By December 1943, Allied forces had gained momentum in North Africa and Italy while planning the cross-Channel invasion of Europe. President Franklin D. Roosevelt weighed options between top generals for the critical role. On December 24, 1943, he appointed General Dwight D. Eisenhower as Supreme Commander of the Allied Expeditionary Force for Operation Overlord. Eisenhower, who had led successful campaigns in the Mediterranean, assumed overall responsibility for planning and executing the Normandy landings. The decision unified command structures ahead of the largest amphibious operation in history.

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Military 20th Century Europe

British Navy Sinks German Battleship Scharnhorst

In December 1943, the German battlecruiser Scharnhorst sortied from Norway with destroyers to attack Allied Arctic convoys bound for the Soviet Union. British intelligence and naval patrols, including forces under Admiral Bruce Fraser, intercepted the German squadron near the North Cape. A prolonged engagement on December 26 involving the battleship HMS Duke of York, cruisers, and destroyers damaged Scharnhorst through gunfire and torpedoes. The ship was overwhelmed and sank with heavy loss of life, leaving only 36 survivors from nearly 2,000 crew. The action ended German surface ship threats to the northern convoys.

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Military 20th Century Russia & Central Asia

Siege of Leningrad Lifted by Soviet Forces

World War II's Eastern Front saw Nazi Germany launch Operation Barbarossa in 1941, with Army Group North advancing toward Leningrad, a vital Soviet industrial and cultural center. By September 8, 1941, German and Finnish forces had encircled the city, cutting land routes and initiating one of history's longest and deadliest sieges marked by relentless bombardment, starvation, and extreme winter conditions that killed hundreds of thousands of civilians. Soviet defenders held firm through 1942 and 1943 despite immense suffering, maintaining a tenuous supply line across frozen Lake Ladoga known as the Road of Life. On January 27, 1944, after the successful Leningrad-Novgorod offensive involving multiple Soviet fronts, Red Army units finally expelled German forces from the southern outskirts, fully breaking the...

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Military 20th Century Europe

Allied POWs Launch Great Escape from Stalag Luft III

During World War II, Stalag Luft III in Sagan, Germany, held Allied air force officers under strict Luftwaffe security. RAF Squadron Leader Roger Bushell organized a massive tunnel escape plan involving hundreds of prisoners over months of secret digging. On the night of March 24, 1944, 76 men crawled through the narrow tunnel "Harry" to temporary freedom despite challenges like a short exit point. German forces quickly recaptured most escapees; Hitler ordered the execution of 50 of them in retaliation. The event inspired the 1963 film The Great Escape and highlighted prisoner resilience.

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Military 20th Century Europe

Allied Armies Launch Massive D-Day Invasion of Normandy

By spring 1944, Allied commanders under General Dwight D. Eisenhower had spent months preparing Operation Overlord to open a second front against Nazi Germany in Western Europe. On June 6, more than 156,000 troops from the United States, Britain, Canada, and other nations crossed the English Channel in the largest seaborne invasion in history. Airborne divisions dropped behind enemy lines hours earlier while naval and aerial bombardments pounded German defenses along five designated beaches codenamed Utah, Omaha, Gold, Juno, and Sword. Fierce resistance, especially at Omaha Beach, caused heavy casualties, yet the Allies secured beachheads by nightfall despite rough seas and strong fortifications. The landings initiated the liberation of France and the broader advance across Western Europe that contributed directly...

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Military 20th Century Europe

Germany Launches First V-1 Flying Bomb Attacks on Britain

In the summer of 1944, following the Allied invasion of Normandy, Nazi Germany sought new ways to strike back at British cities. The V-1, a pulsejet-powered cruise missile nicknamed the buzz bomb or doodlebug, represented the first operational weapon of its kind. On June 13, German forces began launching V-1s from sites in northern France toward London and southern England. Only a handful reached their targets that day, but the campaign quickly intensified, with thousands more fired over subsequent months. The attacks killed civilians, damaged infrastructure, and spread fear through the distinctive buzzing sound of the missiles.

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Military 20th Century Oceania

U.S. Marines Launch Invasion of Saipan

By mid-1944, U.S. forces had island-hopped across the central Pacific, aiming to seize the Mariana Islands as bases for B-29 bombers targeting Japan. Japanese defenders on Saipan numbered around 32,000 under General Yoshitsugu Saito, far more than U.S. estimates. On June 15, after days of naval and air bombardment, the 2nd and 4th Marine Divisions stormed ashore on the southwest coast supported by the 27th Infantry Division in reserve. Intense Japanese artillery and machine-gun fire inflicted heavy casualties on the first day, yet Marines secured beachheads and began pushing inland. The landing triggered the Battle of the Philippine Sea, crippling Japanese naval airpower.

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Politics 20th Century Europe

Iceland Declares Independence as Republic

Iceland had operated under a personal union with Denmark since 1918, maintaining domestic autonomy while sharing a monarch. World War II disrupted this arrangement when Germany occupied Denmark in 1940, prompting British and later American forces to assume defense of Iceland at its government's invitation. A 1944 referendum saw overwhelming support for ending the union and establishing a republic. On June 17, 1944, at Þingvellir, the Althing formally proclaimed the Republic of Iceland, electing Sveinn Björnsson as its first president. King Christian X of Denmark sent congratulations despite the unilateral action, which Denmark formally recognized years later.

Military 20th Century Southeast Asia

U.S. Navy Launches Battle of the Philippine Sea

In the Pacific Theater of World War II, American forces advanced toward the Mariana Islands to establish bases for bombing Japan. Japanese Admiral Jisaburo Ozawa sought to halt the invasion by committing the Imperial Navy's carrier fleet in a decisive engagement. On June 19, 1944, the Battle of the Philippine Sea commenced as Japanese aircraft launched multiple waves against U.S. Fifth Fleet carriers under Admiral Raymond Spruance near the Mariana Islands. American pilots and anti-aircraft defenses, benefiting from superior training, radar, and numbers, downed over 200 Japanese planes in what became known as the "Marianas Turkey Shoot." The U.S. lost relatively few aircraft while Japanese carrier air power was devastated. The battle continued into June 20 with further Japanese losses,...

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Military 20th Century Europe

Stauffenberg Attempts to Assassinate Hitler

By mid-1944, Germany faced mounting defeats in World War II, prompting a group of military officers and civilians in the German resistance to plot against Adolf Hitler. Colonel Claus von Stauffenberg, a key conspirator who had lost an eye and hand in earlier combat, led the effort under Operation Valkyrie. On July 20, Stauffenberg placed a briefcase bomb under a conference table during a meeting at the Wolf's Lair headquarters in East Prussia. The explosion killed several officers but only wounded Hitler due to the bomb's placement and a sturdy table leg. The subsequent coup attempt in Berlin collapsed when news of Hitler's survival spread.

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Civil Rights 20th Century Europe

Gestapo Arrests Anne Frank and Family

In occupied Amsterdam, the Frank family and four others had hidden in a secret annex behind Otto Frank's business since 1942 to escape Nazi persecution of Jews. A Dutch informant tipped off the Gestapo. On August 4, 1944, German officers raided the warehouse, discovered the annex, and arrested all eight occupants. They were deported to concentration camps. Only Otto Frank survived the war. Anne's diary, preserved by a helper, was later published and became a global testament to the Holocaust.