The United States on Monday suspended all military engagements with Russia, including military exercises and port visits, as Washington sought ways to punish Moscow over its military intervention in Ukraine without escalating the crisis. The announcement from the Pentagon came hours after President Barack Obama warned the US government will look at a series of economic and diplomatic sanctions that would isolate Moscow. The United States also put trade and investment talks with Russia on hold.
Despite an international outcry over actions in Ukraine, Putin has shown little sign of backing down, and Russia has built up armored vehicle presence near Crimea and staged military maneuvers in what appears to be a show of strength. US officials have dismissed the possibility of military options, which could further escalate the standoff, and the Pentagon appeared at pains to quash any speculation the US armed forces were poised to get involved.

(Economic Times)