Global Defense video review (aka SDI or Strategic Defense Initiative) Classic Game Room reviews GLOBAL DEFENSE for Sega Master System from 1987, an arcade game where players control a satellite and shoot down ICBM (Intercontinental Ballistic Missiles) and other enemies protecting Earth, the moon and other intergalactic locations. SDI, or Global Defense, is available for some other game systems and old school computers as well as the SMS. Global Defence review (if you spell is wrong) is from CGR and covers the 1987 Global Defense on SMS Sega Master System from Sega released in 1987.
