 Complete the following phrase:  General Dos Santos believed in a hearts and minds campaign that resulted in the construction of schools and other infrastructure and the training of African Units to build partner capacity a technique that is used today by the U.S. Military in Africa. He was relieved by General Kaúlza de Arriaga who took over in 1970 and demonstrated poorer success for the Portuguese in the counterinsurgency operations Gordian Knot Operation in that the scorched earth policy he pursued turned the people against him. For his efforts in Mozambique Gen dos Santos was awarded the Ordem Militar da Torre e Espada. A year later, Augusto dos Santos began serving as the Portuguese Army Chief of Staff Chefes do Estado-Maior do Exército, a post he held until 1972. He was retired at the time of 