On February 2, Matthew Kroenig, vice president and senior director of the Scowcroft Center, appeared on BBC News to discuss how the United States should respond to the recent attack by Iran-affiliated forces that killed 3 US service members in Jordan.
If the [US] response is too weak, Iran will essentially conclude that it got away with this attack and that it can continue to attack US forces and bases in the region, so it needs to be strong enough that Iran decides that this isn’t worth it.