McNamara has been pounding the table on arms reduction for a long time. Conservatives want live babies so they can raise them to be dead soldiers. - George Carlin
The Hiroshima bomb was 20 Kt. During the 50's and 60's massive hydrogen bombs were built, with an explosive power of several Mt's. Biggest was the Soviet "Tsar bomba" of 50 Mt.
During the 70's and 80's the precision of the weapons increased and the warheads were downsized to a few hundred Kt's.
In paralell we had the tactical weapons which were always relatively small, from the sub-kiloton range to a few hundred kilotons.
The smallest nuclear weapon ever built was the wonderfully cute American Davy Crocket which could be mounted on a jeep or on a tripod launcher. It had a variable yield. The minimum yield was 10-20 tons. For a comparison, the biggest non-nuclear bomb in the world, the American MOAB, has a 12 ton yield. Peak oil is not an energy crisis. It is a liquid fuel crisis.
