One use would be to hide behind the moon to block interference from Earth, at the L2 point in the earth-moon system. Use a laser to, say, a repeater at L4 or L5

One use would be to hide behind the moon to block interference from Earth, at the L2 point in the earth-moon system. Use a laser to, say, a repeater at L4 or L5, and from there further to either LEO or directly the surface.