Operation Greif - Wikipedia
✪ 23 year old German soldier Manfred Pernass, is about to die at the hands of US forces at Henri-Chapelle on 23-12-1944. He, Oberfähnrich Günther Billing and Gefreiter Wilhelm Schmidt were captured wearing US uniforms for Operation Greif ("Griffin"). They were all executed. Their Waffen-SS commander, Otto Skorzeny, would, after the war, also be charged but acquitted. Their (non-combat) use of enemy uniforms ended up being considered a legitimate ruse by the tribunal.
Romans in Britain - The Roman Military
Typical equipment of the Roman legionnaire. Only Roman citizens could sign up for the army. They had to be fit. They were not allowed to marry. Their armor gave them excellent protection. They carried a curved shield. They could punch the enemy with the metal boss in the center.