The logistic support organisations of the principal allied armed forces (British, German and American) have evolved profoundly in the past few years. Following the redefinition of the powers of the Chief of French Defence Staff (CEMA) in April 2005, it is now essential to look once again at the overall logistic support of our Armed Forces. This will allow us to reduce disparities, adapt to the planned 2015 Armed Forces organisation, increase their reactivity in external operations, and finally to exercise better control over the cost of maintenance in operational condition (MCO).