Building the Army of 2030. The AUSA (Association of the United States Army), Annual Meeting and Exposition features professional presentations, panel discussions, workshops and seminars covering significant pertinent military and national security themes and objectives. Senior leader from the Army, DOD and congress speak on topics regarding current and future states of the Army. The annual meeting draws more than 30,000 attendees from around the world and 700+ exposition displays across five halls taking place in Washington D.C.