In Tam

Following the overthrow of the Khmer Rouge, In Tam supported Norodom Sihanouk, and his FUNCINPEC organisation, against the Vietnamese-backed government; he was the commander-in-chief of FUNCINPEC's military wing, the MOULINAKA, later known as the Armée nationale sihanoukiste, until his replacement by Prince Norodom Ranariddh in 1985. He was one of three ministers of National Defense of the Coalition Government of Democratic Kampuchea. He refounded the Cambodian Democratic Party, which failed to win seats in Parliament in the 1993 elections. In 1997 he made an alliance with the Cambodian People's Party.

When the Khmer Rouge gained control of Cambodia in April 1975, In Tam was at his farm in Poipet. He almost certainly would have been executed, but he fled to Thailand and attempted to organise a rebellion against the Khmer Rouge in the border areas. This did not last long, however, as the Thai authorities deported him. He went to France and then in 1976 moved to the United States where he received asylum.

In 1972, Tam ran in presidential elections against Lon Nol and Keo An. A United States National Security Council report judged Tam to be the among the most experienced and politically mature of Cambodian politicians at the time, with a deserved reputation for incorruptibility and a modest lifestyle. He came in second place behind Lon Nol, receiving 24% of the vote: it was widely believed that if the elections had been fairly conducted In Tam would in fact have won outright, and despite manipulation of the vote still managed to win in the capital, Phnom Penh. Along with Prince Sisowath Sirik Matak's Republican Party, Tam's Democratic Party refused to contest the parliamentary elections later that year in protest at rules that they saw as favouring the Socio-Republican Party of Lon Nol and his brother Lon Non.

He was involved in the arrest of his own nephew Preap In, who was accused of membership of an anti-Sihanouk, rightist guerrilla organisation, the Khmer Serei; Preap In was later executed. Despite his former loyalty to Sihanouk, however, In Tam was one of the main figures behind the Cambodian coup of 1970, with the vote to remove Sihanouk from power taking place under his direction. As President of the National Assembly, In Tam personally proclaimed the Khmer Republic in October 1970.

After 1970, Tam came into increasing conflict with the coup's leader, Lon Nol. The latter took action in October 1971 to strip the National Assembly of its legislative powers, citing a growing state of emergency in the Cambodian Civil War: this provoked a protest by Tam and 400 monks.

During the 1960s Tam served in several posts in the Sangkum government of Prince Norodom Sihanouk, most notably as interior minister from 1964 to 1966.

In Tam (Khmer: អ៊ិន តាំ [ʔɨn tam]; 22 September 1916 – 1 April 2006) was a Cambodian politician who once served as the prime minister of the Khmer Republic. He served in that position from 6 May 1973 to 9 December 1973, and had a long career in Cambodian politics.