2021 Al-Tanf drone attack

On 20 October 2021, multiple projectiles struck the Al-Tanf U.S. military base in Syrian opposition controlled territory, where members of the CJTF-OIR were training a Free Syrian Army unit known as Maghaweir al-Thowra. Although no injuries were sustained, the attack was unusually heavy—seemingly a mix of drone and rocket systems, with as many as five munitions used. Both the FSA areas and CJTF-OIR areas of the base were attacked.^[1] The coalition confirmed that the attack involved “a UAS [i.e., drone] attack coupled with IDF," referring to "Indirect Fire using Rockets."^[2][3]

2021 Al-Tanf drone attack
Part of 2019–2021 Persian Gulf crisis and the Syrian civil war
Location	Al-Tanf base, Al-Tanf, Syria 33°30′21″N 38°37′04″E
Target	Combined Joint Task Force – Operation Inherent Resolve Maghaweir al-Thowra
Date	20 October 2021 (UTC+2 (EET))
Executed by	Army of the Guardians of the Islamic Revolution (alleged)

The attack on this US garrison may have been in response to Israeli activities, according to The New York Times.^[4] Pentagon officials said Iran was behind the attacks.^[5]