Sen. Tammy Duckworth (D-IL), an Iraq War veteran who lost both her legs in combat, expressed alarm on Tuesday over the federal government’s use of military helicopters to disperse protests in Washington, D.C. the night before.

Duckworth said on Twitter that she has witnessed similar scenes during her deployment in the Middle East.

“When I was in Iraq, we flew Black Hawks in the fight against Al-Qaeda to protect our troops,” said Duckworth, a former lieutenant colonel in the U.S. Army. “In Donald Trump’s America, those same helicopters are being used to intimidate peaceful protesters in our own nation’s capital instead.”

The brandishing of military muscle by the federal government against protesters continued later that night with Lakota and Black Hawk helicopters flying low and intimidating crowds calling for justice in cases of police brutality that took the lives of unarmed black people, like George Floyd who died in police custody last week.