Russia's interest in the deconfliction zone has nothing to do with combating terrorism in the region, a US defense official told BI. The At Tanf deconfliction zone sits in the middle of a major connection between Tehran and Damascus.
Moscow remains critical of the US military presence in Syria. Nonetheless, Russia agreed to a 55-kilometer deconfliction zone around the At Tanf garrison, and the US military continues to expect the Russians to continue to abide by this agreement.
The US military has previously engaged foreign forces that attempted to enter the deconfliction zone. For instance, last summer, coalition troops "destroyed" pro-regime forces that "advanced inside the well-established deconfliction zone," CENTCOM said in a statement.