The establishment of permanent American military bases in allied countries near Russia has been a NATO taboo for 25 years. But Russian President Vladimir Putin’s announcement Monday recognizing the independence of two self-proclaimed “people’s republics” in eastern Ukraine and subsequent movement of troops toward the breakaway territories could be the …

President Joe Biden on Tuesday ordered an additional 800 U.S. troops, more than 30 helicopters and as many as eight F-35 fighter jets now in Europe to NATO countries on the alliance’s eastern flank as Russian troops begin to move into Ukraine. The roughly 800 U.S. troops will deploy to …

As the crisis in Eastern Europe continues to unfold, we tapped our expert network to answer our burning questions about the implications for Russia, Ukraine, and the wider world. Why is Russia moving so aggressively against Ukraine right now? This crisis was entirely fabricated by Russian President Vladimir Putin; there …