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.

After twelve days of intense strikes between Israel and Iran – punctuated by the United States’ bombing of Iranian nuclear sites over the weekend and Tehran’s performative retaliation – a US-brokered ceasefire appeared to be holding on Tuesday.

President Donald Trump on Monday announced that Israel and Iran had agreed to a ceasefire, after more than a week of fighting following Israel's strikes -- and subsequent U.S. attacks -- on Iran's nuclear program.