From 1978 to 1982 Lê Đức Thọ was named by Hanoi to act as chief advisor to the Kampuchean United Front for National Salvation (FUNSK) and later to the nascent People's Republic of Kampuchea.
I perioden 1978-1982 blev Tho af Hanoi udnævnt til chefrådgiver for Kampucheas Forenede Front for National Frelse (FUNSK) og senere for det spirende Folkerepublikken Kampuchea.