"We need to learn from Iraq and Libya — wars that were propagated as necessary to relieve human suffering, but actually increased human suffering many times over," she said in an email to The Hill.

Gabbard, a major in the Hawaii Army National Guard who served two tours in Iraq, has been highly critical of Trump's decision last Thursday to launch 59 missiles at a Syrian airfield in response to a deadly chemical attack that killed scores of civilians, including children, in a western Syrian town days before.

The Trump administration says the chemical attacks were carried out by Syrian President Bashar Assad — a charge Damascus denies — and congressional leaders from both parties have endorsed the president's response.