Guide to the list. The list consists of columns that can be sorted by clicking on the appropriate title: The names of the states, accompanied by their respective national flags.; The number of military personnel on active duty that are currently serving full-time in their military capacity.; The number of military personnel in the reserve forces that are not normally kept under arms, …

The following is a list of states that have admitted the possession of nuclear weapons or are presumed to possess them, the approximate number of warheads under their control, and the year they tested their first weapon and their force configuration. This list is informally known in global politics as the "Nuclear Club". With the exception of Russia and the United States (which …