In the hours after Iran launched a missile attack on a US base in Qatar, President Donald Trump and a group of his top diplomatic and security officials worked furiously behind-the-scenes to try to broker a peace deal to end the conflict between Iran and Israel.

The U.S. Department of Homeland Security warned Americans of a "heightened threat environment" on June 22 that could include attacks on U.S. soil. That fear appeared to dissipate when Iran attacked a United States military base in Qatar June 23, injuring no one.