Check out AUSA 2025 Annual Meeting & Exposition - Association of the United States Army 2025 Walter E. Washington Convention Center ✅ Dates ✭ Location ✭ Schedule ✭ Registration ✭ Agenda ✭ Reviews ✭ Exhibitor list. AUSA 2025 Annual Meeting & Exposition - Association of the United States Army is going to be organised at Walter E. Washington Convention Center, Washington DC, USA from 13 Oct 2025 to 15 Oct 2025 This expo is going to be a 3 day event. This event forays into categories like Security & Defense.