Combatant command overseas operations funding is omitted from official cost reports.

Evidence

The OCS also appears to overlook operations and maintenance funds and other spending that go directly to the Pentagon’s cross-service Unified Combatant Commands. Six of those commands—Africa, Central, European, Northern, Pacific, and Southern—divide the globe among them, and all of them operate in whole or in part overseas. So do the Special Operations and Transportation Commands. — David Vine, Base Nation_ How U.S. Military Bases…, 632