unconditional surrender

unconditional surrender (countable and uncountable, plural unconditional surrenders)

1. A surrender without conditions (beyond those imposed by the basic laws of war).
   • 1945 April 16, Harry S. Truman, 10:06 from the start, in MP72-20 President Roosevelt’s Funeral and Procession; Truman – New President of U.S.‎, Harry S. Truman Presidential Library and Museum, National Archives Identifier: 595162:

     So that there can be no possible misunderstanding, both Germany and Japan can be certain beyond any shadow of a doubt that America will continue to fight for freedom until no vestige of resistance remains. Our demand has been and it remains unconditional surrender.

• “unconditional surrender”, in Collins English Dictionary.
• Oxford Reference