Hobart's Funnies lead into D-Day terminology

A discussion of Hobart's specialised assault vehicles leads into how military operations are classified. Bridge-laying, mine-clearing, flamethrower, and Kangaroo troop-carrying vehicles could each merit study in their own right. Under the narrow sea-basing definition used here, the D-Day force organised on land and crossed directly to its target rather than operating from a base at sea. That terminology sits beside the common description of D-Day as history's most famous amphibious operation, making the moment useful for seeing how definitions alter operational categories.