“U.S. Special Forces had first set up shop in al-Tanf during the war against the Islamic State. Their plan was to support the Revolutionary Commando Army, a friendly Syrian rebel group. That project failed embarrassingly. The Revolutionary Commando Army suffered a major defeat at the hands of the Islamic State in 2016, and one of its leaders ran off with American-made guns after he was accused of drug trafficking in 2020. Kurdish-led forces elsewhere in Syria became a much more reliable partner for the U.S. military.
Meanwhile, Russia—which is allied with the Iranian and Syrian governments—agreed to enforce a 55 kilometer “deconfliction zone” around al-Tanf. The zone also included Rukban, an unofficial refugee camp built by Syrians fleeing government persecution. (The Syrian government reportedly tortured two former Rukban residents to death in October 2022.) No country wanted to take responsibility for the camp, and it took almost a decade for the U.S. military to begin providing food aid to Rukban.
Washington, however, had a different purpose for al-Tanf in mind: countering Iran and its allies. The base’s location near the Iraqi-Syrian border made it valuable real estate, especially for anyone intent on breaking up the “land bridge” between Iranian allies. It also allowed the U.S. military and Israeli intelligence to listen in on Iranian communications, according to Al-Monitor, a Washington-based magazine focused on the Middle East. So the Americans stayed.
“Control of [al-Tanf] neutralized a key border crossing point on the road between Baghdad and Damascus, which forced Iran and others to cross from Iraq into Syria at a more distant border crossing to the north,” former Trump administration official John Bolton declared in his 2020 memoir, The Room Where It Happened. “Besides, why give away territory for nothing?”
More provocatively, Israeli forces began using al-Tanf’s airspace to bomb Iranian and pro-Iranian forces in Syria. (Since American aircraft often fly the same route, Syrian “air defenses can’t tell the difference until it’s too late,” a U.S. official told Al-Monitor.) The Israeli air campaign, known as “the war between the wars,” was designed to prevent Iran from moving weapons into the region in anticipation of a future war. Israel dropped more than 2,000 bombs on Syria in 2018, through “near-daily” air raids, with the direct involvement of U.S. leaders.
“The Israeli strike plans were submitted through the U.S. military chain and reviewed at CENTCOM [U.S. Central Command], usually days in advance of the strike; the strike plans outlined the purpose of the mission, the number of warplanes that would carry out the attack, and when it would occur,” wrote Wall Street Journal reporter Michael Gordon in his 2022 book, Degrade and Destroy: The Inside Story of the War Against the Islamic State. “They also spelled out the routes the Israeli planes would take and the coordinates of the target that would be struck. CENTCOM would examine the request, which would also be shared with the U.S. defense secretary, who would have the final say.”
It seemed like a win-win arrangement. Israel had a safe route for its bombing runs, and the United States could weaken a foreign rival without getting directly involved. But there was a problem: Iran was not stupid, and it could see that the American troops were facilitating the raids on its own troops. In retaliation for a series of Israeli attacks in October 2021, the Iranian military bombed al-Tanf the following month. No Americans were harmed at the time, but it was an ominous sign of the dangers involved.”
…
“Other officials and experts continued to worry that al-Tanf could become a liability. Former U.S. Air Force colonel Daniel L. Magruder Jr. called al-Tanf “strategic baggage” in an article published by the Brookings Institute a few weeks after Biden was elected. He recommended withdrawing U.S. forces in exchange for a deal to allow the refugee safe passage. The colonel warned that Russia and Iran had “acted provocatively” against al-Tanf in the past. “Would the U.S. be able to control escalation if an American were killed?” he wondered.
Three years later, Magruder’s question is sadly relevant. It remains to be seen how Biden will react to the killing of the three American troops, and whether that reaction deters further violence or escalates the situation even more. But Washington can’t say it wasn’t warned.”