PUERTO PRINCESA, Philippines — U.S. Marines from 2nd Battalion, 1st Marine Regiment, Marine Rotational Force – Darwin (MRF-D) 25.3 Marine Air-Ground Task Force (MAGTF), Australian Army Soldiers with the 5th/7th Battalion, The Royal Australian Regiment (5/7 RAR), Australian Defence Force (ADF), and Philippine Marines from the 3rd Marine Brigade, Philippine Marine Corps (PMC), executed a high-tempo, trilateral simulated airfield insertion...
