Complex sentence: Many of the early Cambodian communists had strong links with the Viet Minh, received training and support from the Vietnamese Party, and in many cases, supported Sihanouk as a figure of national unity.
Split into simpler sentences: Many of the early Cambodian communists had strong links with the Viet Minh, and received training and support from the Vietnamese Party. In many cases, they supported Sihanouk as a figure of national unity.