 Complete the following phrase:  In late December 1951, Trinquier was again in Indochina for his third tour  this time in the newly formed Groupement de Commandos Mixtes Aéroportés GCMA Composite Airborne Commando Group commanded by Edmond Grall. Trinquier took over the command of the GCMA in early 1953 and directed the fighting behind Viet Minh lines, creating a maquis in the Tonkinese upper region and in Laos, totaling around 30,000 men. Trinquiers maquis contributed to the successful evacuation of the fortified airhead at Na San, in August 1953, and the reoccupation of the Phong Saly and Sam Neua provinces. After the French withdrawal following the 