12:30-2:00 p.m., Edward Ifft, Georgetown University, "Implementing the New START Treaty." Vienna Center for Disarmament and Non-Proliferation (VCDNP), VCDNP Conference Room, Donau-City-Strasse 6, Andromeda Tower, Floor 13/1, Vienna. RSVP online.
President Obama attends a G-20 summit. Hangzhou, China.
Labor Day (holiday).
House and Senate reconvene from their August recess.
First anniversary of the Senate voting to uphold the Joint Comprehensive Plan of Action with Iran.
Anniversary of the attacks on the World Trade Center and the Pentagon.
Federal agencies submit their initial budgets to the Office of Management and Budget for fiscal year 2018 (estimate).
1:-00-3:00 p.m., Rose Gottemoeller, Undersecretary of State for Arms Control and International Security; Rebecca Hersman, Center for Strategic and International Studies; Robert Peters, National Defense University; and Philipp Bleek, Center for Nonproliferation Studies (CNS), "Lessons Learned from Eliminating WMD." CNS, 1400 K St., NW, Suite 1225, Washington. RSVP by Sept. 8 online.
6:30-8:30 p.m., Robert Kenner, director, producer and co-writer, Command and Control; Eric Schlosser, producer and co-writer, Command and Control; Sharon Squasson, Center for Strategic and International Studies; and Tamara Patton, Princeton University, "Command and Control: A Social Cinema Screening." New America, 156 Fifth Ave., Second Floor, New York. RSVP online.
~10:30 a.m., President Obama addresses the U.N. General Assembly. United Nations. Broadcast on CNN, webcast on the U.N. website and may be webcast on the White House website.
12:15-2:00 pm, Henry Sokolski, Nonproliferation Policy Education Center, "Underestimated: Our Not So Peaceful Nuclear Future." Columbia University, Saltzman Institute of War and Peace Studies, School of International and Public Affairs, 420 W. 118th St., New York.
10:30 a.m.-3:30 p.m., retired Gen. Robert Kehler, former Commander, U.S. Strategic Command; retired Gen. James Kowalski, former Vice Commander, U.S. Strategic Command; and other speakers TBA, "The Enduring Requirements of Deterrence: Transition to a New Administration" Sponsored by Minot (ND) Task Force 21. At the Capitol Hill Club, 300 First St. SE, Washington. RSVP online.
Missile Defense Agency, intercept flight test (FTG-15) of the Ground-Based Midcourse (GMD) missile defense system. Vandenberg Air Force Base, Lompoc, CA, and Reagan Test Site, Marshall Islands. This is the first GMD intercept test since June 2014.
6:00-9:00 p.m., Thomas Pickering, former Undersecretary of State for Political Affairs; and Richard Somerville, Scripps Institution of Oceanography, "Bulletin of Atomic Scientists Annual Dinner." Chicago Cultural Center, 78 E. Washington St., Chicago.