found: Work cat.: Maps of military plans and operations, 1944 June-1945 Apr.(military maps depicting Operation Grenade, February to March 1945)
found: Adkins, P. Codeword dict., 1997(Grenade; February 1945 attack by the American 9th and Canadian 1st armies across the Rhine into the area between Dusseldorf and Wesel, Germany; crossing made more difficult by German destruction of dams upstream)
found: Polmar, Norman. World war II, America at war ... c1991:p. 353 (Grenade; code name for U.S. Ninth Army and First Canadian Army offensive in the Rhine in February 1945)
