How many existing basic design types are there of the weapons the United States and the Soviet Union had an arms race over?
Nuclear weapon design Nuclear weapon designs are physical, chemical, and engineering arrangements that cause the physics package of a nuclear weapon to detonate. There are three existing basic design types. In many existing designs, the explosive energy of deployed devices is derived primarily from nuclear fission, not fusion. (This includes fission of any U-238 tamper or casing due to fusion produced neutrons.)
Military equipment of Israel The military equipment of Israel includes a wide array of arms, armored vehicles, artillery, missiles, planes, helicopters, and warships. Many of these are purchased overseas and many are indigenous designs. Until the Six-Day War of 1967, the Israel Defense Forces' principal supplier was France; since then, it has been the United States government and defense companies. In the early 21st century, Israeli companies such as Soltam Systems began selling arms to the United States. Much of the military equipment undergoes improvements in Israeli workshops. In addition to weapons purchased overseas and indigenous products, Israel also operates and maintains large stockpiles of Soviet-made equipment captured from Arab armies over the course of the Arab–Israeli Conflict.