Turkey says still talking to Russia about S-400 missile deliveries
Surprisingly, Biden's administration said earlier this month that it now believed that supplying Turkey with F-16 jets would serve America's strategic interests
How Russia beat America to the hypersonic missile
A near-unstoppable weapon has entered the war in Ukraine, and the U.S. has no way to match it-yet
Russia and US exchange prisoners
Trevor Reed, an American jailed for nearly three years, while Russian prisoner Konstantin Yaroshenko was serving 20 years