U.S. officials “cannot track progress, if any” in their efforts to advise and train Afghanistan’s military and domestic security forces, according to a new Defense Department watchdog report.

The independent audit of the Pentagon’s produced a murky picture of American operations in Afghanistan. U.S. military personnel and defense contractors are often deployed without adequate training on how to advise the Afghan Ministry of Defense, or MOD, and Ministry of Interior, or MOI, despite the high cost and importance of these operations, it said.