The Democrat-led U.S. House of Representatives passed a non-binding resolution Thursday forcing President Donald Trump to seek congressional approval before taking any new military measures against Iran.

The mostly symbolic war powers resolution was approved after nearly all House Democrats were joined by three Republicans and one independent lawmaker to vote 224-194 in favor of the measure.

The vote took place almost a week after Trump, a Republican, signed off on a U.S. drone strike in Iraq that killed Qassem Soleimani, the head of Iran’s Islamic Revolutionary Guards Corps’ Quds Force, and brought Iran and the U.S. closer

Read more: US lawmakers vote to curb Trump’s war powers with Iran