Since the 1960s, the US government has devoted considerable resources to preventing the spread of nuclear weapons to both its adversaries and its partners. This ambitious goal exerts an important—sometimes decisive—influence on US decisions about its alliance network, its global military posture, the size and configuration of its nuclear forces, and whether to send US soldiers to wage preventive war. US policies have helped limit the number of nuclear-armed countries to nine, but growing proliferation incentives and strains on American grand strategy may eventually force US policymakers to reconsider anti-proliferation maximalism. Please join us for a day-long conference with leading experts on the carrots and sticks of US policy and whether they will remain effective at acceptable cost to Americans.