During his repatriation journey , he was allowed to see Montgomery 's 21st Army Group preparing for the invasion of Europe .
During his repatriation journey , he was was told he was in Kent , where Patton 's mythical 1st U.S. Army Group was preparing for its invasion .
During his repatriation journey , he was allowed to see Montgomery 's 21st Army Group preparing for the invasion of Europe , but was told he was in Kent , where Patton 's mythical 1st U.S. Army Group was preparing for its invasion .