Century

20th Century

848 sourced events. Showing 337-360.

Events

20th Century Timeline

Politics 20th Century North America

Dumbarton Oaks Conference Opens to Plan United Nations

As World War II neared its end, Allied powers sought to create a new international organization to prevent future global conflicts. From August 21 to October 7, 1944, representatives from the United States, United Kingdom, Soviet Union, and China met at the Dumbarton Oaks estate in Washington, D.C. They drafted proposals for the structure of what would become the United Nations, including the Security Council and General Assembly frameworks. The conference built on earlier wartime agreements and addressed issues of collective security and postwar governance. China participated in a second phase after initial Soviet objections.

Event Detail US Military Atlas

Military 20th Century Europe

Allied Forces Liberate Paris from Nazi Occupation

Following the successful Normandy landings in June 1944, Allied armies advanced across northern France toward the capital. Paris had endured four years of German occupation, with residents facing rationing, repression, and the looming threat of destruction ordered by Hitler. On August 25, 1944, French and American forces, including the 2nd Armored Division under General Philippe Leclerc, entered the city after days of uprising by French Resistance fighters. German commander Dietrich von Choltitz defied orders to demolish landmarks and surrendered the city. Crowds celebrated in the streets as Allied troops marched in. The liberation boosted morale across occupied Europe and marked a major symbolic victory for the Allies.

Event Detail US Military Atlas

Military 20th Century Europe

Moscow Armistice Ends Continuation War for Finland

Finland had fought the Soviet Union in the Continuation War since 1941 as a co-belligerent with Germany, seeking to regain territory lost in the 1940 Winter War. By mid-1944 Soviet advances and German setbacks made continued fighting untenable, prompting Finnish leaders to seek separate peace. On September 19, 1944, Finnish, Soviet, and British representatives signed the Moscow Armistice in the Soviet capital, restoring the 1940 borders with adjustments, requiring Finland to expel German forces, pay reparations, and lease territory. The agreement formally ended hostilities and allowed Finland to avoid full occupation. Implementation led to the Lapland War against remaining German troops.

Event Detail US Military Atlas

Civil Rights 20th Century Europe

Sonderkommando Prisoners Revolt at Auschwitz-Birkenau

During World War II, Nazi Germany operated Auschwitz-Birkenau as a major extermination camp where hundreds of thousands of Jews and others were murdered in gas chambers. Sonderkommando prisoners, mostly Jewish men forced to handle bodies from the gas chambers and operate crematoria, faced imminent death as the SS periodically liquidated units. On October 7, 1944, after learning of plans to kill many of them, Sonderkommando members at Crematorium IV launched a revolt, attacking guards with improvised weapons and explosives smuggled by Jewish women workers from a nearby factory. They set fire to one crematorium and damaged another, killing several SS personnel. The uprising was quickly suppressed by reinforced guards, resulting in the deaths of around 250 prisoners in the fighting...

Military 20th Century Southeast Asia

MacArthur Wades Ashore in the Philippines

After fleeing the Philippines in March 1942 under Japanese advance, General Douglas MacArthur had vowed to return. By October 1944, U.S. forces under his command had island-hopped across the Pacific and prepared the invasion of Leyte. On October 20, American troops landed on the island amid light initial resistance. Hours later, MacArthur stepped from a landing craft into the surf, accompanied by Philippine President Sergio Osmeña, fulfilling his promise in a moment captured by photographers. He then broadcast to the Filipino people: “People of the Philippines, I have returned.” The landing initiated the liberation campaign and triggered the massive Battle of Leyte Gulf.

Event Detail US Military Atlas

Military 20th Century Southeast Asia

Climax of Battle of Leyte Gulf

In World War II, Allied forces under General Douglas MacArthur landed on Leyte in the Philippines on October 20 to liberate the islands from Japanese occupation. Japanese naval forces launched a multi-pronged counteroffensive to destroy the invasion fleet. On October 25, the Battle off Samar saw a small U.S. escort carrier group face a superior Japanese surface force, while first kamikaze attacks targeted American ships elsewhere in the gulf. U.S. forces held despite losses, forcing the Japanese to withdraw. The engagement marked the largest naval battle in history and crippled Japanese naval power.

Event Detail US Military Atlas

Military 20th Century East Asia

USS Sealion Sinks Japanese Battleship Kongō

In the final months of World War II in the Pacific, U.S. submarines targeted Japanese naval assets supporting operations around Formosa and the Philippines. On November 21, 1944, the submarine USS Sealion (SS-315) intercepted a Japanese task force in the Formosa Strait. Using torpedoes, Sealion struck the battleship Kongō, a veteran of earlier campaigns, and the destroyer Urakaze. Both vessels sank rapidly with heavy loss of life among their crews. The action demonstrated the effectiveness of American submarine patrols in interdicting enemy reinforcements and capital ships late in the war.

Event Detail US Military Atlas

Military 20th Century Europe

Battle of the Bulge Begins in Ardennes

By late 1944, Allied forces had liberated much of Western Europe after D-Day and were advancing toward Germany, though stretched thin in some sectors. Adolf Hitler ordered a surprise counteroffensive to split Allied lines, recapture Antwerp, and force negotiations. On December 16, 1944, German armies launched a massive assault through the Ardennes Forest in Belgium, Luxembourg, and northern France under poor weather that grounded Allied air support. American troops, including inexperienced units, faced intense artillery barrages and armored advances, creating a bulge in the lines. Key defensive stands occurred at places like Bastogne and Elsenborn Ridge, halting the German momentum despite initial gains.

Event Detail US Military Atlas

Military 20th Century Europe

Battle of the Bulge Ends with Allied Victory

In December 1944, German forces launched a surprise offensive through the Ardennes Forest aimed at splitting Allied lines and capturing Antwerp. Harsh winter conditions and initial German gains created a bulge in the Allied front. American and British troops held key positions, most famously at Bastogne, and received critical reinforcements. By mid-January 1945, counterattacks had pushed the Germans back to their starting lines. On January 25, the campaign officially concluded with the restoration of the original front. The battle cost the United States over 80,000 casualties, its highest of the European war.

Event Detail US Military Atlas

Civil Rights 20th Century Europe

Soviet Troops Liberate Auschwitz-Birkenau

As Allied forces closed in on Nazi Germany in the final months of World War II, the Red Army advanced rapidly through Poland following major offensives that shattered German lines on the Eastern Front. Auschwitz-Birkenau, the largest Nazi concentration and extermination camp complex near Kraków, had been the site of systematic murder of over a million people, predominantly Jews, as part of the Holocaust's Final Solution through gassings, starvation, forced labor, and medical experiments. On January 27, 1945, soldiers of the Soviet 60th Army of the First Ukrainian Front reached the camp, encountering approximately 7,000 emaciated survivors amid evidence of mass killings and the hasty evacuation of tens of thousands of prisoners on death marches. The liberators provided immediate medical...

Event Detail US Military Atlas

Politics 20th Century Europe

Yalta Conference Opens in Crimea

As World War II neared its end in Europe, the Allied leaders needed to coordinate the final defeat of Nazi Germany and plan the postwar order. Franklin D. Roosevelt, Winston Churchill, and Joseph Stalin met at the Livadia Palace near Yalta in the Crimea. The conference began on February 4, 1945, and lasted until February 11. Discussions covered the occupation of Germany, the creation of the United Nations, Soviet entry into the war against Japan, and the future of Eastern Europe. Agreements reached at Yalta shaped the division of Europe and the onset of the Cold War.

Event Detail US Military Atlas

Politics 20th Century Global

Allied Leaders Conclude Yalta Conference

As World War II neared its end in Europe, the leaders of the United States, United Kingdom, and Soviet Union met to coordinate final strategy against Nazi Germany and plan the postwar order. President Franklin D. Roosevelt, Prime Minister Winston Churchill, and Premier Joseph Stalin gathered at the Livadia Palace near Yalta in Crimea from February 4 to 11, 1945. On the final day, they signed the Declaration of a Liberated Europe committing to free elections in liberated countries and outlined occupation zones for Germany. The agreements also addressed Soviet entry into the war against Japan and the establishment of the United Nations. The conference produced protocols on prisoners of war and Polish borders. Though hailed at the time as...

Event Detail US Military Atlas

Military 20th Century Europe

Allied Bombing of Dresden Begins in World War II

As World War II neared its end in Europe, Allied commanders targeted German cities to disrupt transportation, industry, and morale in support of the advancing Soviet forces from the east. Dresden, a major rail hub with cultural significance, had not been heavily bombed earlier in the war. On the night of February 13, 1945, Royal Air Force bombers initiated a massive raid, followed by U.S. Army Air Forces daylight attacks over the next two days. The resulting firestorm destroyed much of the historic city center and killed an estimated 25,000 people.

Event Detail US Military Atlas

Military 20th Century East Asia

U.S. Marines Land on Iwo Jima

As the Pacific War entered its final phase in early 1945, U.S. planners targeted Iwo Jima to secure airfields for fighter escorts and emergency landings supporting B-29 raids on Japan. On February 19, approximately 30,000 Marines from the 4th and 5th Divisions stormed the black-sand beaches under heavy naval and air support. Japanese defenders, entrenched in an extensive tunnel network, held fire until the landing forces were ashore before unleashing devastating artillery and mortar fire. The initial assault secured a beachhead but at high cost, with casualties mounting rapidly in the volcanic terrain. The battle would last over a month and become one of the bloodiest in Marine Corps history.

Event Detail US Military Atlas

Military 20th Century East Asia

U.S. Marines Raise Flag on Mount Suribachi

In the Pacific Theater of World War II, U.S. Marines landed on Iwo Jima on February 19 to secure airfields for B-29 operations against Japan. After days of intense fighting against entrenched Japanese forces, a platoon reached the summit of Mount Suribachi on February 23. They raised a small U.S. flag around 10:30 a.m., followed later that day by a larger one captured in Joe Rosenthal's iconic photograph. The image of six Marines hoisting the flag symbolized American determination and became one of the war's most enduring symbols.

Event Detail US Military Atlas

Military 20th Century East Asia

U.S. Launches Devastating Firebombing of Tokyo

By early 1945, U.S. Army Air Forces shifted to low-altitude incendiary raids against Japanese cities after high-altitude precision bombing proved less effective. On the night of March 9, 334 B-29 Superfortress bombers took off from Pacific bases for Operation Meetinghouse. Pathfinders marked targets in eastern Tokyo with napalm, followed by waves dropping over 1,600 tons of incendiaries. The resulting firestorm consumed densely populated wooden districts, killing an estimated 80,000 to 100,000 people, mostly civilians, and leaving over a million homeless. The raid destroyed 16 square miles of the city.

Event Detail US Military Atlas

Military 20th Century East Asia

U.S. Firebombs Tokyo in Deadliest Air Raid

By early 1945, U.S. strategic bombing of Japan had shifted from precision strikes on industry to area incendiary attacks after earlier campaigns proved ineffective due to weather and Japanese dispersal of production. Under General Curtis LeMay, XXI Bomber Command launched Operation Meetinghouse on the night of March 9-10, 1945, sending 279 B-29 Superfortresses loaded with napalm-filled M69 incendiaries over Tokyo at low altitude. The resulting firestorm consumed densely packed wooden neighborhoods, destroying over 267,000 buildings and killing an estimated 90,000 to 100,000 people, mostly civilians. Japanese defenses were overwhelmed, with minimal losses to the attacking force. The raid became the single most destructive conventional bombing attack of the war and influenced subsequent tactics against other Japanese cities.

Event Detail US Military Atlas

Politics 20th Century Middle East & North Africa

Arab States Establish League of Arab States in Cairo

As World War II drew to a close, Arab leaders sought greater coordination amid rising nationalism and the looming question of Palestine’s future. Building on the 1944 Alexandria Protocol, representatives from Egypt, Iraq, Transjordan, Lebanon, Saudi Arabia, Syria, and Yemen convened in Cairo. On March 22, 1945, they signed the Pact of the League of Arab States, creating a regional organization with a council in which each member held one vote. The league aimed to strengthen economic ties, resolve internal disputes, and present a united political front on regional matters. Headquarters were established in Cairo, and the body later expanded to include additional Arab nations while pursuing initiatives such as a common market in the 1960s.

Military 20th Century East Asia

U.S. Forces Invade Okinawa in WWII

As Allied forces closed in on the Japanese home islands in spring 1945, planners selected Okinawa as a forward base for the anticipated invasion of Japan. The island's airfields and harbors offered critical staging areas within striking distance of the mainland. On April 1, 1945, U.S. Army and Marine units began amphibious landings on the western coast of Okinawa under Tenth Army command. Japanese defenders had prepared extensive fortifications inland rather than contesting the beaches directly. Initial advances met light resistance, allowing rapid seizure of airfields, but the campaign soon turned into a prolonged and costly battle. The operation ultimately secured the island after eighty-two days of fighting.

Event Detail US Military Atlas

Military 20th Century East Asia

U.S. Aircraft Sink Japanese Battleship Yamato

In the closing months of World War II in the Pacific, Japan faced mounting losses and prepared desperate measures to defend Okinawa. The massive battleship Yamato, flagship of the Imperial Japanese Navy and one of the largest ever built, was dispatched in Operation Ten-Go on a one-way mission to beach itself and support defenders with its massive guns. Detected by U.S. submarines and reconnaissance, the vessel and its escorts came under sustained attack on April 7, 1945, from hundreds of carrier-based aircraft. Hit by multiple bombs and torpedoes, Yamato capsized and sank after a catastrophic magazine explosion, with the loss of most of her crew.

Event Detail US Military Atlas

Military 20th Century Europe

US Forces Liberate Buchenwald Concentration Camp

As Allied armies advanced deep into Germany in April 1945, Nazi authorities ordered the evacuation of Buchenwald, a major concentration camp near Weimar holding political prisoners, Jews, Roma, and others. Prisoner resistance groups delayed evacuations and, on April 11, seized control of the camp after SS guards fled. Later that afternoon, elements of the U.S. Sixth Armored Division, part of the Third Army, entered the camp and found more than 21,000 survivors. The liberators encountered horrific conditions, including emaciated prisoners and evidence of mass deaths. The event became one of the first major revelations of Nazi camp atrocities to Western forces.

Event Detail US Military Atlas

Military 20th Century Europe

British Forces Liberate Bergen-Belsen Concentration Camp

In the closing weeks of World War II in Europe, as Allied armies advanced deep into Germany, British troops of the 11th Armoured Division reached the Bergen-Belsen camp near Celle on April 15. They found roughly 60,000 emaciated prisoners, many suffering from typhus and other diseases, along with thousands of unburied corpses scattered throughout the site. The camp, originally a prisoner-of-war facility, had become overcrowded with Jewish prisoners and others transferred from eastern camps ahead of the Soviet advance. Commandant Josef Kramer and remaining SS personnel were detained, and British medical teams began immediate efforts to treat survivors and contain the epidemic. The liberation revealed the full scale of Nazi atrocities to Western audiences through photographs and newsreels.

Event Detail US Military Atlas

Military 20th Century Europe

U.S. and Soviet Troops Meet on Elbe River

As World War II in Europe neared its end, advancing Allied and Soviet armies converged on Nazi-held territory from west and east. On April 25, 1945, U.S. reconnaissance units from the First Army encountered Soviet forces near Torgau and Strehla along the Elbe River in Germany. The meeting cut German forces in two, preventing organized retreat or reinforcement between fronts. Soldiers from both sides celebrated the linkup with handshakes and shared rations amid the ruins of war. This event became known as Elbe Day, symbolizing the impending defeat of Nazi Germany.

Event Detail US Military Atlas

Military 20th Century Europe

Italian Partisans Capture Benito Mussolini

By April 1945, Benito Mussolini's Italian Social Republic, a German puppet state in northern Italy, was collapsing under Allied advances and partisan uprisings. On April 25, Mussolini fled Milan disguised in a German uniform, traveling in a convoy toward the Swiss border with his mistress Clara Petacci and other Fascist officials. Early on April 27, the column was stopped at a partisan roadblock near Dongo on Lake Como by members of the 52nd Garibaldi Brigade. After negotiations allowing German troops to proceed, partisans searched the vehicles and discovered Mussolini hiding under a blanket in a truck. He was arrested, disarmed, and taken into custody; Petacci chose to remain with him. The capture ended Mussolini's flight and paved the way for...

Event Detail US Military Atlas