Biden proposes summit with Putin after Russia calls U.S. 'adversary' over Ukraine

Snipers of the Ukrainian armed forces aim their rifles during training at a firing range near the town of Marinka in Donetsk region, Ukraine April 13, 2021. REUTERS/Anastasia Vlasova

WASHINGTON/MOSCOW (Reuters) -U.S. President Joe Biden called on Russian President Vladimir Putin on Tuesday to reduce tensions stirred by a Russian military build-up on Ukraine's border and proposed a summit of the estranged leaders to tackle a raft of disputes.

The White House and the Kremlin reported only the second conversation between the two since Biden took office in January, after Western officials urged Moscow to end the build-up and Russia, in words recalling the Cold War, said its "adversary" should keep U.S. warships well away from the Crimea region.