Defense and Security

Nuclear weapons

Chemical weapon

Biological weapon

Atomic Weapons

1990-91

1994-96

2000-2001

2002-2003

1990

1993

1914

1919

Develop new nuclear weapon

destroy all nuclear weapon

Launch secret nuclear weapons

Stop all from making nuclear weapons

1920

1939

1930

1940

Jimmy Carter

President Ronald Reagan

Richard Nixon

Bush

United States, China, Russia

Germany, Europe, Arab

Japan, Afghanistan, America, Africa

Pakistan, Afghanistan, Germany, Italy

Nuclear weapons

biolgical weapon

Chemical weapons

State or non state actors

1946

1949

1982

1999

2000

2001

2002

2003