The U.S. Justice Department has provided specific suggestions to governments in Europe and elsewhere on how to strengthen counterterrorism laws in order to arrest would-be foreign fighters before they join groups like Islamic State, according to a policy paper reviewed by Reuters.
Russia sent an advanced missile system to Syria on Wednesday to protect its jets operating there and pledged its air force would keep flying missions near Turkish air space, sounding a defiant note after Turkey shot down a Russian fighter jet.
An investigation into the Nov. 13 attacks in Paris widened on Tuesday when French prosecutors said a man who provided lodging to the suspected ringleader must have known of a militant plot, and Belgium issued a warrant for a new suspect.
The American Civil Liberties Union on Monday sued Indiana Governor Mike Pence over his refusal to allow refugees fleeing Syria's civil war to resettle in the state, saying his position violates federal authority and the U.S. Constitution.
Iran's Supreme Leader Ayatollah Ali Khamenei on Tuesday accused the United States of trying to divide Iraq along sectarian and ethnic lines and urged Iraqis to withstand any such plans.
Since last month, U.S. warplanes have struck Islamic State's oil infrastructure in Syria in a stepped-up campaign of economic warfare that the United States estimates has cut the group's black-market earnings from oil by about a third.
Turkish fighter jets shot down a Russian warplane near the Syrian border on Tuesday after repeated warnings over air space violations, but Moscow said it could prove the jet had not left Syrian air space.
Khalid Ben Larbi lived a hedonistic lifestyle similar to other European youths and rarely went to the mosque in Molenbeek, the mainly Muslim Moroccan immigrant area where he and three of the suspected Paris attackers grew up in Brussels.
A U.S. lawmaker introduced a bill aiming to toughen the vetting process for refugees seeking to enter the United States as Republican leaders in Congress sought to block Syrians fleeing war in their country.
Gunfire and explosions shook the Paris suburb of St. Denis early on Wednesday when French police raided an apartment where a Belgian Islamist militant suspected of masterminding last week's attacks in the French capital was possibly holed up.
CIA Director John Brennan warned on Monday that the attacks in Paris claimed by the extremist Islamic State movement were not a “one-off event” and that the militants may have similar operations ready to launch.
French warplanes pounded Islamic State positions in Syria on Sunday as police in Europe widened their investigations into coordinated attacks in Paris that killed more than 130 people.
Islamic State claimed responsibility on Saturday for attacks that killed 127 people in Paris, saying it sent militants strapped with suicide bombing belts and carrying machine guns to various locations in the heart of the capital.
Kurdish peshmerga forces backed by U.S. air strikes seized the Iraqi town of Sinjar from Islamic State on Friday, a Reuters witness said, in one of the most significant counter-attacks since the militants swept through the north last year.
Islamic State militants committed genocide against Iraq's Yazidis in the north of the country and carried out crimes against humanity, ethnic cleansing, and war crimes against other minorities, the U.S. Holocaust Memorial Museum said on Thursday.
At least 43 people were killed and more than 240 wounded on Thursday in two suicide bomb blasts claimed by Islamic State in a crowded residential district in Beirut's southern suburbs, a stronghold of the Shi'ite Muslim group Hezbollah.
Investigators of the Russian plane crash in Egypt are "90 percent sure" the noise heard in the final second of a cockpit recording was an explosion caused by a bomb, a member of the investigation team told Reuters on Sunday.
Chemical weapons experts have determined that mustard gas was used in a Syrian town where Islamic State insurgents were battling another rebel group, according to a report by an international watchdog seen by Reuters.
Moscow's military force in Syria has grown to about 4,000 personnel, but this and more than a month of Russian air strikes have not led to pro-government forces making significant territorial gains, U.S. security officials and independent experts said.
The U.S. military said on Wednesday it was moving toward providing additional weaponry to Syrian opposition forces battling Islamic State after territorial gains in the past week by the U.S.-backed fighters.
Evidence now suggests that a bomb planted by the Islamic State militant group is the likely cause of last weekend's crash of a Russian airliner over Egypt's Sinai peninsula, U.S. and European security sources said on Wednesday.