Republicans are advancing a plan to add up to $150 billion for the Pentagon as part of the party’s megabill on spending and tax cuts. But that increase is spread over a decade — not enough, defense-oriented Republicans argue, to substitute for large, sustained annual budget hikes.

The proposal specifies that the Pentagon's money should be spent on developing a "Golden Dome for America," a missile defense system; on expanding shipbuilding; on U.S. "space dominance"; on modernizing the nuclear arsenal; on a 3.8 percent pay raise to servicemen; and on the F-47 fighter aircraft.