This was the theme song
of the 1970 Clint Eastwood comedy Kelly's Heroes
. The film is a typical example of Eastwood's deadpan humor; Kelly is an American soldier who discovers a horde of gold bars stashed in a bank behind enemy lines, so he recruits a group of renegades to rob it. The song
bears no real relation to the film although it could be interpreted as a former soldier reminiscing about the good old days of the war.
Alexander Baron - London, England