Overseas Cost of Living Allowance COLA - Overseas official website OCONUS Military Acclimate (cost of living comparisons) Cost of Living Adjustment (COLA) - OCONUS official website COLA - Overseas www.defensetravel.dod.mil/site/cola.cfm Overseas Cost of Living Allowances (COLA) http://www.defensetravel.dod.mil/site/cola.cfm https://www.defensetravel.dod.mil/site/cola.cfm Military Acclimate (cost of living comparisons)