When Hawaii (Oahu) was believed to be "Strategic", there were Six U.S. Army Nike Hercules Anti Aircraft, Anti Ballistic Missile Batteries at Oahu Hawaii.   On top of the Waianae Mountains was one set of the Radars (Long Range High Power Target Detection, Targeting, Guidance to Intercept) and a Battery of Nike Hercules Missiles on Launchers, there were others also like at Koko Head.  Each Nike Hercules was equipped with a W7 later a W31 Nuclear Warhead to be detonated within Enemy Aircraft Formations or in front of incoming sets of ICBM MIRV Warheads, in extreme circumstances a Nike Hercules could be used as Ground to Sea to sink an Enemy Submarine carrying Nuclear Missiles.  The U.S.S.R. had Oahu Targeted with a 100 Mega Ton (Central Oahu) and multiple 1 Mega Ton (perimeter of Oahu) Thermo Nuclear MIRV Warheads, coming over the Arctic from U.S.S.R., Alaska's ABMs  might stop this, coming from North Korea nope, they are not going to fly one over Russia, just so that Alaska can intercept