Humvees, U.S. troops land in Poland

Five U.S. military planes landed at Rzeszow-Jasionka Airport, located around 100km (62 miles) from the Ukraine border, on Monday (February 7).

U.S. President Joe Biden on Wednesday (February 2) ordered nearly 3,000 extra troops to Poland and Romania, as Washington moves to reassure jittery NATO allies.

As Russia masses more than 100,000 troops near the border, Moscow has said it is not planning an invasion but could take unspecified military action if its security demands are not met.

Those include a promise that NATO will never admit Ukraine, a demand the United States and the 30-nation Western security alliance have called unacceptable.