The relatively small royal army, which at the time of the coup had around 35,000 troops (in accordance with Sihanouk's stated policy of neutrality), was greatly expanded. Reorganising as FANK, the republican army had grown to around 150,000 men as early as the end of 1970, mainly through voluntary enlistment as Lon Nol sought to capitalise on a wave of anti-Vietnamese sentiment. The US also implemented its programme of structured military aid and assistance in training, and flew in several thousand Khmer Serei and Khmer Kampuchea Krom militia, trained in South Vietnamese bases. The Joint Chiefs insisted on massive expansion of FANK to over 200,000 men, despite concerns at the severe negative effect this would have on Cambodia's economy, while the Military Equipment Delivery Team, led by General Theodore C. Mataxis, demanded the 'Americanisation' of the army's French-influenced internal structures, in spite of the chaos this caused in the supply chain.