There's a third option, though I've very little knowledge of its capabilities: "smart" munitions. These are ballistic, like bullets or shells, but have some c

There's a third option, though I've very little knowledge of its capabilities: "smart" munitions. These are ballistic, like bullets or shells, but have some capability for maneuver, as with a guided missile. A smart munition with longer range might make for a more effective countermeasure against high-speed (supersonic or hypersonic) missiles. Or possibly high-speed (supersonic) torpedoes, another emerging class of anti-ship weapons. See: <https://en.wikipedia.org/wiki/Smart_bullet https://en.wikipedia.org/wiki/Smart_bullet>