Babrak Karmal (born Sultan Hashem; 6 January 1929 – 1 or 3 December 1996) was an Afghan politician and statesman during the Cold War. Karmal was born in Kamari and educated at Kabul University, after which he started his career as a bureaucrat. Before, during and after his career as a bureaucrat Karmal was a leading member of the Afghan movement. He was introduced to Marxism by Mir Akbar Khyber during his imprisonment for activities deemed too radical by the government. When the People's Democratic Party of Afghanistan (PDPA) was formed, Karmal became one of its leading members, and eventually became the leader of the Parcham faction. When the PDPA split in 1967, the Parcham-faction established a Parcham PDPA, while their ideological nemesis, the Khalqs, established a Khalqist PDPA. Under Karmal's leadership, the Parchamite PDPA participated in Mohammad Daoud Khan's rise to power, and his subsequent regime. While relations were good at the beginning, Daoud began a major purge of leftist influence in the mid-1970s. This in turn led to the refoundation of the PDPA in 1977. The PDPA took power in the 1978 Saur Revolution.

Hafizullah Amin (1 August 1929 – 27 December 1979) was an Afghan politician and statesman during the Cold War. Amin was born in Paghman and educated at Kabul University, after which he started his career as a teacher. After a few years in that occupation, he went to the United States to study. He would visit the United States a second time before moving permanently to Afghanistan, and starting his career in radical politics. He ran as a candidate in the 1965 parliamentary election but failed to secure a seat. Amin was the only Khalqist elected to parliament in the 1969 parliamentary election, thus increasing his standing within the party. He was one of the leading organisers of the Saur Revolution which overthrew the government of Mohammad Daoud Khan.

Amin's short-lived presidency was marked by controversies from beginning to end. He came to power by killing his predecessor Nur Muhammad Taraki. The revolt against communist rule which had begun under Taraki worsened under Amin, and was a problem that his government was unable to solve. The Soviet Union, which alleged that Amin was an agent of the Central Intelligence Agency, intervened in Afghanistan on behalf of the Twenty-Year Treaty of Friendship between Afghanistan and the Soviet Union. Amin was assassinated by the Soviets in December 1979 as part of Operation Storm-333, having ruled for slightly longer than three months.