The McCormick Defense arises from the King's Gambit and is characterized by Black’s solid development and pawn structure after accepting the gambit. By playing ...e7-e5 and subsequently exchanging on f4, Black aims for a robust setup with the bishop on e7 and the knight on f6, allowing for a focus on central control and piece activity while minimizing immediate tactical threats. This opening appeals to players who prefer a strategic and resilient approach, valuing solid pawn structures and gradual development over sharp, tactical skirmishes.