March 11
Madrid Train Bombings Kill 191
Summary
Three days before Spain's general elections, coordinated terrorist attacks targeted the commuter rail system during morning rush hour. Ten bombs exploded on four trains at three stations in Madrid. The attacks, carried out by Islamist militants linked to al-Qaeda networks, killed 191 people and injured around 1,800 others. Spanish authorities initially blamed the Basque separatist group ETA but quickly shifted focus as evidence pointed to Islamic extremism. The bombings led to massive public demonstrations and influenced the election outcome, contributing to the defeat of the incumbent Popular Party.
Why It Matters
The attacks represented one of Europe's deadliest terrorist incidents and prompted major changes in Spanish counterterrorism policy and international cooperation against Islamist networks. They highlighted vulnerabilities in urban transit systems and affected Spain's political landscape regarding the Iraq War. The event remains a reference point for European security strategies and victim support frameworks.
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Sources
- On This Day - What Happened on March 11 | Britannica, Encyclopædia Britannica. Accessed 2026-07-08.
- 2004 Madrid train bombings - Wikipedia, Wikimedia Foundation. Accessed 2026-07-08.