France has been subjected to a sustained series of extremist attacks in the past 2 years. Here are some of the major assaults.

July 14, 2016: Amid Bastille Day celebrations in the Riviera city of Nice, a large truck is driven into a festive crowd. Some 86 people from a wide variety of countries are killed. The driver is shot dead. Islamic State extremists claim responsibility for the attack. The state of emergency in France is extended and extra protection, including robust barriers to prevent similar attacks, is put in place at major sites in France.
———
June 13, 2016: Two French police officers are murdered in their home in front of their 3-year-old son. Islamic State claims responsibility for the slaying, which was carried out by a jihadist with a prior terrorist conviction. He is killed by police on the scene.
———
Nov. 13, 2015: Islamic State militants kill 130 people in France's worst atrocity since World War II. A series of suicide bomb and shooting attacks are launched on crowded sites in central Paris, as well as the northern suburb of Saint-Denis. Most of those killed are in a crowded theater where hostages are taken. Islamic State extremists claim responsibility and say it was in retaliation for French participation in airstrikes on the militant group's positions in Syria and Iraq. It leads to the declaration of a state of emergency in France. Police powers are expanded.
———
Jan. 7, 2015: Two brothers kill 11 people inside the Paris building where the satirical magazine Charlie Hebdo is headquartered in what Islamic State extremists claim is retaliation for the publication of cartoons about the Prophet Muhammad. More are killed subsequently in attacks on a kosher market in eastern Paris and on police. There are 17 victims in all, including two police officers. The attackers are killed.

Read more: ABC News