The atomic bombs dropped on Japan by the United States during World War II displayed the might of nuclear weapons to the world. The Cold War that developed after the war intensified the nuclear arms race. The Soviet Union, United Kingdom, France and China all followed the US in carrying out successful nuclear tests, and nuclear weapons proliferated around the world. The nuclear arms race resulted in the manufacture and accumulation of more than enough weapons to destroy the environment and annihilate the human race. It destroyed the global environment through nuclear testing, and harmed many innocent victims in the vicinity of testing sites. With the nuclear tests conducted in May, 1998 by India and Pakistan, we face the dangerous possibility that the number of official nuclear powers will increase.

Nuclear
DevelopmentwordE.html in the
United States
1939 8.02. Letter from Einstein.
10.21. Establishes the Uranium Advisory Committee because of worries that Germany, which had plunged into World War II, might develop an atomic bomb first.
1942 8.13. Launches Manhattan Project under military leadership.
1944 9.18. Enters into Hyde Park Agreement.
1945 7.16. Carries out successful atomic bomb test in Alamogordo, New Mexico.
8.06. Drops atomic bomb on Hiroshima.
8.09. Drops atomic bomb on Nagasaki.
1952 11.01. Carries out successful hydrogen bomb test over the Eniwetok Atoll in the Marshall Islands.
1997 7.03. Conducts subcritical nuclear tests (15 tests by Dec. 2001; Russia announces it has been conducting similar tests.)
2002 2.14. US and UK conduct joint subcritical nuclear test
Nuclear
Development
by the
former Soviet Union
1949 8.29. Carries out successful atomic bomb test at the Semipalatinsk nuclear test site, ending the US nuclear monopoly.
1953 8.12. Carries out successful hydrogen bomb test.
Nuclear
Development by
United Kingdom
1940 Forms committee of scientists to study the possibility of producing an atomic bomb.
1943 Participates in the US Manhattan Project.
1946 Establishes atomic power research center and furthers its own atomic bomb development plan.
1952 10.03. Carries out successful atomic bomb test over Monte Bello Islands, Australia.
1957 5.15. Carries out successful hydrogen bomb test over Christmas Island.
2002 2.14. US and UK conduct joint subcritical nuclear test
Nuclear
Development by
France
1957 Threatened by the installation of Soviet nuclear missiles, begins nuclear development for security purposes under President De Gaulle.
1960 2.13. Carries out successful atomic bomb test in the Sahara Desert.
1968 8.24. Carries out successful hydrogen bomb test.
1995 9.00. Resumes testing in the South Pacific (6 tests by Jan. 1996)
Nuclear
Development by China
1958 Begins operating nuclear reactor through cooperation with the Soviet Union.
1959 fter cancellation of the China-Soviet agreement, begins independent nuclear development.
1964 10.16. Carries out successful atomic bomb test in western China.
1996 6.00. Hurries to conduct tests before the CTBT is adopted.
1967 6.17. Carries out successful hydrogen bomb test.
Nuclear
Development by
India
1974 5.18. Successful test of a thermonuclear device (equivalent to a hydrogen bomb)
1998 5.11. Successful A-bomb test in Pokaran Desert
Nuclear
Development by
Pakistan
1998 5.28. Successful A-bomb test in the Chagai Hills