The Army last month completed a first-ever, live-fire exercise in Europe of a unit designed to break up Russia's anti-access/area-denial capabilities, dispersing troops across Germany, Poland and Romania to test and experiment elements of multidomain operations by synchronizing precision effects across the continent. On Sept. 8, 2nd Multi-Domain Task Force completed an exercise called Arcane Thunder 23 -- the inaugural event of a series the Army plans to conduct annually -- that allowed the unit, with participation from France, Poland,...