Battle of Hamburger Hill "chewed up like a hamburger" in grim reference to the Battle of Pork Chop Hill during the Korean War. The battle on Hamburger Hill occurred in May 1969, during Operation Apache Snow, the second part of a three-phased campaign intended to destroy PAVN Base Areas in the remote A Sầu Valley. This campaign was a series of operations intended to do damage to the PAVN forces in the A Sầu Valley, which had been an infiltration route into South Vietnam prior to 1966, when the PAVN seized the Special Forces camp in the valley during the Battle of A Shau
History of the hamburger ice cream chain filmed a documentary about the birthplace of the hamburger featuring Davis' story. The story of "Old Dave's Hamburger Sandwich" is also found mentioned in Ronald L. McDonald's book "The Complete Hamburger". In the same year that Charlie Nagreen claimed to have developed his "Hamburger Charlie", the brothers and street cooks Frank and Charles Menches of Akron, Ohio claimed to have sold a ground beef sandwich at the Erie County Fair. They assert that the name of the hamburger was derived from the town Hamburg, New York in Erie County, the first place in which it had been