original_query: What were the key features of the Tank, Infantry, Mk IV (A22) Churchill?
query: What were the key features of the Tank, Infantry, Mk IV (A22) Churchill?
answer: Key features of the Churchill tank included heavy armour, a large longitudinal chassis with all-around tracks and multiple bogies,  the ability to climb steep slopes, and its use as a basis for many specialist vehicles.  It was one of the heaviest Allied tanks of WWII, initially designed for crossing difficult terrain.