The Islamic State group poses a "direct threat to the USA," according to 84 percent of Americans surveyed in a recent poll.
Each side accuses the other of restarting the violence.
Ahead of a planned ceasefire, military officials in eastern Ukraine say fighting has increased as rebels push for more territory.
A day after the IMF announced a multibillion dollar loan to Ukraine, Fitch casts doubt on the country's ability to pay its debts.
Apart from the maintenance cost, Russia could also receive a payback amount of more than $1 billion from France.
Over 5,000 people have been killed over the last 10 months in clashes between pro-Russian rebels and Ukrainian forces.
Thursday's agreement did not address many key matters, raising concerns that the pact could eventually fall apart.
Cisco helped propel the blue-chip index, while gains from Apple and Expedia boosted the Nasdaq to its loftiest level since 2000.
The A-10 was designed in the 1970s to kill Russian tanks. It never had to, but now it's being sent to Russia's doorstep.
Did Putin get what he wanted? And what about Poroshenko, who faces hardliners at home that will likely resist the terms he accepted?
The eleventh-hour agreement could very well unravel if leaders can't hammer out solutions to the many unresolved issues.
The deal stipulates that a ceasefire will go into effect between Ukrainian forces and Russian-backed separatists starting on Sunday.
Apparently, quite a bit. With time running out on Greece's bailout, there are few advantages if the country leaves the eurozone.
Russia's nuclear force is set for major upgrades over the next few years, per a new Russian military doctrine.
The picture shows a gay couple, Jon and Alex, being intimate in St. Petersburg, Russia.
On Thursday, the IMF approved a $17.5 billion package to stabilize Ukraine's economy.
Andrei Lugovoi and Dmitry Kovtun are suspected of killing Alexander Litvinenko, a former member of the country's FSB security service.
The leaders met in Minsk with a barely civil greeting, and outside, a Russian reporter barked at a Ukrainian news team.
Ukraine has little leverage in Minsk without modern weapons to defend itself against Russian-backed separatists, analysts say.
“We are for peace ... [but] our country needs to be defended and we will do that to the end," Ukrainian President Petro Poroshenko said.
The U.S. House of Representatives introduced new legislation to help Ukraine counter pro-Moscow rebels.
The ceasefire, if confirmed, would come just before Russian, German, French and Ukrainian leaders meet in Minsk.