Anti matter bomb and ICBMs
http://en.wikipedia.org/wiki/Antimatter_weapon
Mankind strongly believe that in order that he could sleep in security is by making his enemies couldn't. And vice versa.
Quote Wikipedia
An
antimatter weapon is a hypothetical device using
antimatter as a power source, a propellant, or an explosive for a
weapon. Antimatter weapons do not currently exist due to the cost of production and the limited technology available to produce enough antimatter in sufficient quantities for it to be an acceptable weapon.
The
United States Air Force, however, has been interested in
military uses—including
destructive applications—of antimatter since the
Cold War, when it began funding antimatter-related
physics research. The primary theoretical advantage of such a weapon is that antimatter and matter collisions, though significantly limited by
neutrino losses, still
<<<convert a larger fraction of the weapon's mass into explosive energy than a fusion reaction in a hydrogen bomb>>>, which is on the order of only 0.7%