"Re-tooling an army from scratch," as it fights a war
U.S. and allied forces try to equip Ukrainian soldiers to stay alive and hold their ground in the grinding fight against Russian-backed rebels
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U.S. and allied forces try to equip Ukrainian soldiers to stay alive and hold their ground in the grinding fight against Russian-backed rebels
Turkey's Erdogan says Russian leader isn't responding to his calls amid growing tensions after alleging another Russian jet violated their airspace
Incident comes just two months after Turkey shot down Russian jet for crossing into its terrority
U.N. official calls negotiations for political solution to 5-year war "an opportunity not to be missed," but one of the main parties to the conflict is missing
Timur and Amur's story began with a dinner date, and didn't end nearly as badly as it could have for Timur
Pyotr Pavlensky is well-known dissident who once nailed his scrotum to Red Square and was locked up for setting fire to gov't building
Hopes low for already-delayed Geneva negotiations as major Saudi and Western-backed opposition group sets precondition
With 3 days to go, most in Syrian opposition are unsure whether they want to participate in the U.N.-backed talks; Turkey and Russia in new spat
John Kerry warns both sides in grinding conflict that "rumors" are only prolonging the misery, but still says talks will go ahead, sometime
Assad regime spokesperson says they will offer no concessions in approaching Swiss-based talks because their army is gaining ground everywhere
U.N.-brokered meeting aims to make concrete progress toward ending war that has claimed more than 250,000 lives
The steep decline in oil prices -- now at a 12-year low -- has been a severe blow to Russia's oil-dependent economy
The United States and Russia disagree over which Syrian opposition groups should be labeled terrorists and barred from the negotiations
One South American country is a real basket case, though Saudi Arabia and Russia face tough problems as well
Opposition says bombs hit 3 schools in rebel-held countryside near Aleppo, killing at least 35 children and wounding many more
As currency trading resumed after a holiday break, the ruble's new dive creates yet more headaches for Putin & Co.
Bill Whitaker reports from inside the Syrian base from which Russia is launching air strikes in support of Syrian dictator Bashar al-Assad
Incident in examination room in Belgorod, southwest of Moscow, has gone viral on YouTube, and raised questions of a cover-up
In an age when there is so much tension surrounding the development of nuclear arsenals, we break down which countries have nuclear weapons and which kinds
Error raises concerns Cuba could share the technology with potential U.S. adversaries like North Korea or Russia
The soda giant stumbled into a diplomatic minefield with an ad that showed Crimea as part of Russia
Moscow giving few details on Col.-Gen. Igor Sergun's death at age 58; the GRU intelligence service is believed to be Russia's biggest
European sporting chief says there is probably not enough time for Russians to meet conditions to end their current ban for doping
At least 34 civilians were killed in the Nov. 29 attack; part of growing number of suspected Russian attacks aimed at civilians
Russian president says on national television he will never "brandish this nuclear club" but that its improvement is necessary for "containment"