411 REFERENCE · Wikipedia
1st Pioneer Battalion
Reference material by Wikipedia contributors. This retains its source identity and is not 411 news reporting.
1st Pioneer Battalion may refer to:
1st Pioneer Battalion (Australia): a unit of the Australian Army that served during the First World War
2/1st Pioneer Battalion (Australia): a unit of the Australian Army that served during the Second World War
1st Combat Engineer Battalion: a United States Marine Corps unit, which was originally designated as the 1st Pioneer Battalion