As of 8:00 PM eastern US time on Sunday night, the United States has sortied six (6) KC-135 strato-tankers for mid-air refueling operations. The tankers are presently destined for the United Kingdom and are expected to then deploy to the Middle East.
The thing is, the US already has a very significant number of strato-tanker aircraft in the Middle East.
This large sortie of such aircraft seem to indicate that a much larger operation by US forces is now contemplated in the Middle East, after the US military base at Al Tanf, Syria, was hit with a large drone strike today, killing three US soldiers and wounding at least two dozen others. Thirty-Four troops at that base have been evacuated for "Traumatic brain injuries."
While US politicians are already suggesting the U.S. hit IRAN, because the attackers of the base were allegedly Iranian-backed militants, Iran denies any link to the attack that killed US troops: "Iran has nothing to do with the attacks. The conflict has been initiated by the US military against resistance groups in Iraq and Syria", a spokesman for the Iranian mission at the UN says.