He served as a standing member of the Central Committee of the Korean Independence Alliance and a deputy commander of the Korean Volunteer Army. CIA information indicated that Pak served as Director of the Alliance's Central Politico-Military School. In March 1948, he became a member of the Central Committee of the North Korean Workers' Party. Following the
formal declaration on the establishment of the
Democratic People's Republic of Korea he
was elected to the first convocation of the
Supreme People's Assembly and was appointed the first
Minister of Interior in the
North Korean Cabinet led by
Premier Kim Il Sung until 1953 and was awarded the rank of Lieutenant General. During this period, the CIA ranked Pak as the most important minister in North Korea. In early May, two metal patrol vessels for the Coast Guard, each weighing 200 tons, were launched in the presence of Pak Il-u at the Kalpo-ri shipyard. Other US intelligence files also recorded his role as spokesperson for the
People's Army. In June 1949, Pak became a member of the
Democratic Front for the Reunification of Korea; in June 1950 he became a member of the Military Committee. On November that year, he became Vice Commander of the Front Command, and
Minister of Political Security by July 1951. Under his instructions, the Interior Ministry participated in the construction of air raid shelters. On 10 September 1950, Pak was one of the officials who attended
Kang Kon's funeral. In November 1950, he served as Deputy Commander of the Korean People's Army Frontline Command (1950.11-1952.2). In December, he served as Deputy Political Commissar of the Joint Command of the
Chinese People's Volunteers and the Korean People's Army. On December 19, Pak was recorded as a former Politburo member of the North Korean Workers' Party and a new Politburo member of the Korean Central Workers' Party after the merging of the Northern and Southern parties. On 5 October 1951, the CIA commented on his political leanings: Previously, a news report of interest to the CIA from the Sopuk Sinmun had accused Pak and Minister of Defense,
Choe Yong-gon, of abusing their authority for personal enrichment. Pak Il-u's wealth was estimated at the range of 200 million
won in 1950 money. On 12 February 1952, Pak attended a special staff meeting at the North Korean Army General Headquarters, where general North Korean military policies in a post-ceasefire scenario were finalized. He was raised to the military rank of
Vice Marshal in 1953. According to the CIA, Pak was still serving as Interior Minister and Director for the Workers' Party's Political Training and Election committees in as late as mid-January 1953. Another report pushed Pak Il-u's resignation as Interior Minister back to November 1952, while
South Korea's
Chungang Ilbo pinpointed the exact time of this shuffle to fall 1952. The same report furnished that before the reorganization of ministries, Pak's Ministry of Internal Affairs and
Pang Hak-se's Ministry of Social Security were both "interested in intelligence matters and there was overlapping and duplication of efforts." Employees of both ministries wore the same uniform and were also confused over lines of authority, and this "led to many petty feuds and jealousies." ==Death==