<Tr> <Th> US unilateral testing moratorium </Th> <Td> October 2, 1992 </Td> <Td> October 2, 1992 </Td> <Td> no </Td> <Td> George . H.W. Bush declares unilateral ban on nuclear testing . Extended several times, not yet abrogated . </Td> </Tr> <Tr> <Th> Strategic Arms Reduction Treaty (START II) </Th> <Td> January 3, 1993 </Td> <Td> January 1, 2002 </Td> <Td> no </Td> <Td> Deep reductions in ICBMs . Abrogated by Russia in 2002 in retaliation of US abrogation of ABM Treaty . </Td> </Tr> <Tr> <Th> Southeast Asian Nuclear - Weapon - Free Zone Treaty (Treaty of Bangkok) </Th> <Td> December 15, 1995 </Td> <Td> March 28, 1997 </Td> <Td> yes </Td> <Td> Bans nuclear weapons from southeast Asia . </Td> </Tr> <Tr> <Th> African Nuclear Weapon Free Zone Treaty (Pelindaba Treaty) </Th> <Td> January 1, 1996 </Td> <Td> July 16, 2009 </Td> <Td> yes </Td> <Td> Bans nuclear weapons in Africa . </Td> </Tr>

When did the us test the atomic bomb