N.A.T.O. The defensive military alliance formed in 1949 by ten european countries. WARSAW PACT A military alliance formed in 1955 by the Soviet Union Netherlands. Norway.
Tank Rings. Tank rings filled with gravel lift the tank above the surrounding grade. This keeps the tank out of standing water and increases the life of the tank bottom.
Warm core ring â A warm core ring is a type of mesoscale eddy which breaks off from an ocean current, e. g. the Gulf Stream or the Kuroshio Current. The ring is an independent circulatory system of water which can persist for several months.