As noted, the Pentagon is closely watching "alarming indicators of potential preparations for an attack" from the pro-Iranian militia in Iraq.

Earlier in Iran, the United States and Israel warned against adventurous steps against the background of the assassination of nuclear physicist Mohsen Fakhrizadeh. 

Axios, citing a source, reported that the Israeli military had been instructed in case the US "attacks Iran."

As CNN wrote, citing a source, the American aircraft carrier Nimitz is heading to the Persian Gulf amid the withdrawal of the US military from Iraq and Afghanistan.