Transcript for US Marines join largest NATO exercise since the end of the Cold War

Taking off from the USS it will regime a US Marine Corps landing ship parked off the coast of Norway. Besides the penis again tried to jump ship the largest military exercise that NATO has held since the end of the Cold War. 50000 troops 101000 vehicles 250. Aircraft in 65 ships. From 31 countries and training across Norway Finland and Sweden. The cost of the US presence here a 7500. Marines. We flew out of trust if you listen do you regime just carried hundreds of the Marines and their equipment here. Three weak sales in North Carolina. The Marines are clearing out. Pain they don't expect about learning. Not always in. NATO officials are careful to say that these exercises on not directed at anyone with the intended audience is clear. Russian since rusher invading Crimea in 2014 NATO has come to see it is a renewed challenge. The Russian Federation our last year's this exerted itself. In an attempt to. Will regional. There are pretty places that are not traditional or his symmetrical so just a series. They've established faces and voices and killing Ingraham eastern Mediterranean world Crimea nature intended to. Kids are self restraint or accidents. The exercises in the way designed to test niece whose ability to rush horses across long distances to a major crisis. Is also a chance to train. The forces emboldened remained far from that. Middle of these exercises do underlying pays and how difficult the relationship between Russia and western countries has become. And now how long it seems NATO expects back to continue. President were able ABC news can opt out hallway.

This transcript has been automatically generated and may not be 100% accurate.