President Donald Trump continued to defend the decision to withdraw US troops from Syria, saying going to war in the Middle East was the worst decision in American history.

"The United States has spent $ 8 trillion in fighting and policing in the Middle East," Trump said on his Twitter page. "Thousands of our great soldiers have been killed or seriously injured, and millions of people have been killed on the other side."

"Going to the Middle East is the worst decision in the history of our country. We went to war under the false pretext of weapons of mass destruction and have now been refuted.

"Now we are bringing our soldiers and our great army back home with care, our focus on the big picture. The United States is greater than ever."

Trump announced on Monday the withdrawal of US troops from Syria, saying it was time to withdraw from "endless silly wars," but his decision drew strong criticism from both Republican and Democratic leaders in Congress, saying they could jeopardize national security. American risk.