Despite over a dozen waves of large-scale Western coalition attacks on Houthi positions, the Yemeni Shia rebels are vowing more attacks on commercial shipping, as we've reported. 

It is the same with Iran-aligned groups in Syria and Iraq, even after the Pentagon on Friday hit 85 targets with 120 bombs. This marked the single biggest US attack on 'Iranian proxies' in the region since the Gaza war began, but it didn't take long for these very groups to strike back.

The "Islamic Resistance in Iraq" as early as Saturday announced it attacked bases that house US soldiers in Erbil; however, some local sources have disputed that the attack took place, or at least came near where Americans were housed. 

Importantly, President Biden in his statement on the Friday strikes underscored "Our response began today. It will continue at times and places of our choosing."

This means the escalating tit-for-tat will continue to spiral, as the latest overnight attack against an American base in northeast Syria also demonstrates: 

Seven fighters from the Kurdish-led Syrian Democratic Forces were killed in an attack on an American base in eastern Syria overnight, a war monitor said Monday.

Seven SDF special forces "commandos" were killed and 18 others wounded in "a drone attack after midnight" on the Al-Omar oil field, the largest US-led coalition base in the country, said the Syrian Observatory for Human Rights, updating an earlier toll.