The U.S. and Russia have taken leading, often opposing, roles in world affairs, but recent events in Syria and North Korea may invite more cooperation.
North Korea's Kim Jong Un has said nuclear weapons are key to his government's survival and the latest missile test may prove this to be true.
Experts weigh in on whether the U.S. faces a nuclear threat after North Korea successfully tests its first intercontinental ballistic missile.
The U.S. and Russian militaries have found themselves increasingly at odds in the world.
President Donald Trump has changed course a number of times on Syria, but recent events pit him directly against Russia and Iran.
Kurdish militants are on the front lines of U.S.-led efforts to defeat the Islamic State militant group, but what happens when the battle's over?
Russia made threats to retaliate in several ways after the U.S. Navy shot down a Syrian regime aircraft Monday.
Former U.S. Ambassador to Syria Robert Ford said President Barack Obama left his successor with little option but to ultimately withdraw.
Russia severed a military hotline with the U.S. and has said it will turn its air defenses on any U.S. plane that crosses battle lines in Syria.
Around 100 U.S. troops ended a six-year mission earlier in 2017 after failing to capture Kony, whose group has co-opted tens of thousands of children into conflict.
The U.S. is finishing up naval exercises with NATO allies in the Baltic region, but Russia has an even bigger display of military might in the works.
The deal was inked after Trump accused Qatar of being a "high-level" sponsor of terrorism.
Tora Bora, an underground complex of fortified caves that once protected Al-Qaeda chief Osama bin Laden, is now in the hands of the Islamic State militant group.
The Russia-backed Syrian military and its allies entered ISIS-held Raqqa, where U.S.-backed forces are battling the jihadis.
Deputy Chief of Staff of Iranian Armed Forces Major General Mostafa Izadi said Tehran has evidence of the U.S.'s "direct support" for the Islamic State militant group.
Russian Foreign Minister Sergei Lavrov told Secretary of State Rex Tillerson that the U.S. must stop attacking pro-Syrian government forces fighting ISIS.
President Trump gave U.S. forces in Somalia more leeway to strike the Al-Qaeda affiliate earlier this year.
'For too long we have relied too much on the military power of others,' European Commission President Jean-Claude Juncker said. 'We must now seize the moment to take charge of our own security.'
After being attacked, a coalition of forces backing the Syrian government and fighting the Islamic State militant group has warned the U.S. not to cross "red lines."
Pyongyang said the U.S. would suffer a "bitter disgrace" if it did not roll back its hostile stance toward North Korea.
An advocacy group found black troops, especially in the Air Force and Marine Corps, were more likely to face punishment than their white counterparts.
In the latest commentary by state-run media, North Korea asserted its right to maintain nuclear weapons against U.S. "world domination."