"In World War One “Foo was here” was scrawled across camps occupied by the Australian Expeditionary Force. Generally assumed to have come from the acronym for F

"In World War One “Foo was here” was scrawled across camps occupied by the Australian Expeditionary Force. Generally assumed to have come from the acronym for Forward Observation Officer, veterans of that war may have brought the tradition with them into the next global conflict over two decades later" https://taskandpurpose.com/history/the-story-of-kilroy-and-why-he-was-there/ https://taskandpurpose.com/history/the-story-of-kilroy-and-w...