Sherman tanks carrying infantry, a Sherman Crab flail tank, and an ambulance halftrack assemble at the start of Operation "Goodwood", the battle for Caen, Normandy, France; 18 July 1944. 

Infantry and armor, all ready

Fredrick Rolands with some of his fellow soldiers WW1

Fred Rolands

A Self Propelled 17 pounder, Valentine, Mk I,  Archer anti-tank gun in one of the flooded streets of the town of Kranenburg, Germany, near the Dutch border; 11 February, 1945.
  This vehicle was unusual in that its gun faced the rear of the chassis instead of the front.