President Obama—who has been at war longer and reduced nuclear weapons less than any other president—called for peace and an end to nuclear proliferation.

Former Russian President Mikhail Gorbachev, who pushed for nuclear disarmament in meetings with President Ronald Reagan, told Der Spiegel that the US as an “insurmountable obstacle on the road to a nuclear-free world,” and suggested, “That’s why we have to put demilitarization back on the agenda of international politics.”