After Sihanouk showed his support for the Khmer Rouge by visiting them in the field, their ranks swelled from 6,000 to 50,000 fighters. Many of the new recruits for the Khmer Rouge were apolitical peasants who fought in support of the king, not for communism, of which they had little understanding. Sihanouk's popular support in rural Cambodia allowed the Khmer Rouge to extend its power and influence to the point that by 1973 it exercised "de facto" control over the majority of Cambodian territory, although only a minority of its population.