Exercise Grafenwoehr, Germany, Mar. 6, 2019: The business end of an M777 Howitzer, aimed by soldiers with the Army’s 2nd Cavalry Regiment, during Exercise Dynamic Front 2019.

More than 3,200 soldiers from 27 countries are testing out NATO’s new counter artillery-fire doctrine, which it previously lacked, during Exercise Dynamic Front 19. This year’s exercise is the first Dynamic Front to take place in multiple countries.While U.S. troops and allies are conducting the artillery-based war games in Germany, artillery will be firing simultaneously in bases in Poland and Latvia.

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