A Houthi fighter mans a machine gun mounted on a vehicle during a Jan. 22 rally against the US-led military responses to the rebel groups' repeated attacks on international shipping.
A Houthi fighter mans a machine gun mounted on a vehicle during a Jan. 22 rally against the US-led military responses to the rebel groups' repeated attacks on international shipping.
  • The US is seeking to deter Iran and its proxies with retaliatory strikes.
  • But attacks continue against US troops across the region.
  • The US is attempting to strike back effectively without igniting a wider war.

The Iran-backed militias of its so-called "axis of resistance" are threatening more than three thousand American troops deployed to Iraq and Syria with increasingly dangerous attacks, putting the US administration in a bind: Strike back too hard and ignite a wider war or do too little and look weak in an election year.