Did reagan increase or decrease military spending?

No he decrased. Ever heard of reganomics? Liberals like to pretend it was never a thing but "During the campaign of 1980, Ronald Reagan announced a recipe to fix the nation's economic mess. He claimed an undue tax burden, excessive government regulation, and massive social spending programs hampered growth. Reagan proposed a phased 30% tax cut for the first three years of his Presidency. The bulk of the cut would be concentrated at the upper income levels. " basically he decreased taxes for the betterment of the american people.