Sweating and out of breath, young Poles throw grenades and practise evacuating the wounded at a training ground outside Warsaw. "Nobody fainted yet, but the day is young," he deadpanned.

More than 50 years after the Lewis Army Museum in Washington state was established, the space is facing an uncertain future ...

A new Army report reveals how Russian forces are adapting to a long, grinding war — and what lessons the U.S. military is ...