What did Britain consider its largest amphibious assault, and did D-Day count?
Short answerD-Day is debatable in this framing; among completed British operations, Torch and Husky are the principal contenders, with larger assaults planned but not carried out.
NotesOperation Torch and Operation Husky are the principal candidates among assaults actually carried out. D-Day's classification within British amphibious doctrine remains disputed. Larger operations were planned for Singapore and Japan, but those plans do not count as completed assaults.