Dunno, it has to be some energy beam because kinetic ammo needs replenishing. In space. So laser, microwaves, EMP etc. Maybe it could ignite the ICBMs fuel some

Dunno, it has to be some energy beam because kinetic ammo needs replenishing. In space. So laser, microwaves, EMP etc. Maybe it could ignite the ICBMs fuel somehow, as most of the missile's payload is the fuel.