A gun assault on the Paris offices of magazine Charlie Hebdo Wednesday was the deadliest terrorist attack in France for half a century. France raised its terror alert to maximum Some other terror attacks in Western Europe:

March 11, 2004: Bombs on rush-hour trains kill 191 at Madrid's Atocha station in Europe's worst Islamic terror attack.

July 25, 1995: A bomb at the Saint-Michel subway station in Paris kills eight and injures some 150. It was one of a series of bombings claimed by Algeria's GIA, or Armed Islamic Group.

July 22, 2011: Anti-Muslim extremist Anders Behring Breivik plants a bomb in Oslo then attacks a youth camp on Norway's Utoya island, killing 77 people.

July 7, 2005: 52 commuters are killed when four Al-Qaida-inspired suicide bombers blow themselves up on three London subway trains and a bus.

Aug. 15, 1998: A car bomb planted by Irish Republican Army dissidents kills 29 people in Omagh, in the deadliest incident of Northern Ireland's four-decade conflict.

March 2012: A gunman claiming ties to Al-Qaida kills three Jewish schoolchildren, a rabbi and three paratroopers in Toulouse, France.

May 24, 2014: Four are killed at the Jewish Museum in Brussels, Belgium. The accused is a former French fighter tied to the Islamic State group in Syria.

May 22, 2013: Two Al-Qaida inspired extremists run down British soldier Lee Rigby in London, then stab and hack him to death.

Nov. 2, 2011: Offices of Charlie Hebdo in Paris are firebombed after it runs a cover featuring a caricature of the prophet Mohammed. No one is injured.

Associated Press