left-leaning Cambodians, demanding that they meet him to establish a new administration. Sâr was on the list, perhaps because of his role as a teacher, but refused to meet with Sihanouk. He and Ieng Sary left Phnom Penh for a Viet Cong encampment near Thboung Khmum in the jungle along Cambodia's border with South Vietnam. According to Chandler, "from this point on he was a full-time revolutionary". Plotting rebellion: 1962–1968 Conditions at the Viet Cong camp were basic and food scarce. As Sihanouk's government cracked down on the movement in Phnom Penh, growing numbers of its members fled to join Sâr at his jungle base. In February 1963, at the party's second conference, held in a central Phnom Penh apartment, Sâr was elected party secretary, but soon fled into the jungle to avoid repression by Sihanouk's government. In early 1964, Sâr established his own encampment, Office 100, on the South Vietnamese side of the border. The Viet Cong allowed his actions to be officially separate from its own, but still wielded significant control over his camp. At a plenum of the party's Central Committee, it was agreed that they should re-emphasize their independence from the Vietnamese Marxist–Leninists and endorse armed struggle against Sihanouk. The Central Committee met again in January 1965 to denounce the "peaceful transition" to socialism espoused by Soviet Premier Nikita Khrushchev, accusing him of being a revisionist. In contrast to Khrushchev's interpretation of Marxism–Leninism, Sâr and his comrades sought to develop their own, explicitly Cambodian variant of the ideology. Their interpretation moved away from the orthodox Marxist focus on the urban proletariat as the forces of a revolution to build socialism, giving that role instead to the rural peasantry, a far larger class in Cambodian society. By 1965, the party regarded Cambodia's small proletariat as full of "enemy agents" and systematically refused them membership. The party's main area of growth was in the rural provinces and by 1965 membership was at 2000. In April 1965, Sâr travelled by foot along the Ho Chi Minh Trail to Hanoi to meet North Vietnamese government figures, among them Ho Chi Minh and Lê Duẩn. The North Vietnamese were preoccupied with the ongoing Vietnam War and thus did not want Sâr's forces to destabilize Sihanouk's government; the latter's anti-American stance rendered him a de facto ally. In Hanoi, Sâr read through the archives of the Workers' Party of Vietnam, concluding that