How did the strategy of "island hopping" enable the united states to turn the japanese tide in the pacific and advance to within striking distance of the japanese home islands?

“destroyers for bases agreement in the destroyers for bases agreement between the united states and the united kingdom on september 2, 1940, fifty caldwell , wickes, and clemson class us navy destroyers were transferred to the toyalbnavy from the united states navy in exchange for land rights on british possessions.” i hope this you .