Player Embed Code: Download Embed Share 12D, 12P, 12Y Advanced Individual Training Defense Media Activity - Army Productions April 28, 2025 | 7:23 U.S. Army Advance Individual Training (AIT) Instructors teach soldiers the military occupational specialties Diver, Prime Power Production Specialist, and Geospatial Engineer on Ft. Leonard Wood, Missouri, April 28, 2025. AIT Soldiers are prepared to support Army engineer missions by developing skills essential to sustainment, mobility, and infrastructure support on the battlefield. (U.S. Army video by Sgt. Gregory Menke)