Berlin, Feb 23 (Reuters) - Activists protesting against Russia's invasion of Ukraine parked a destroyed, rusty tank directly in front of the Russian embassy in Berlin on Friday, bringing a piece of the battlefield to the centre of the German capital. The tank, a Russian T-72 B1, was destroyed on March 31, 2022, close to the village of Dmytrivka near Kyiv, by an anti-tank mine, according to organiser Giebel and colleague Enno Lenze. See here for a complete list of exchanges and delays