Complex sentence: Somchai enlisted as a canvasser for the Social Action Party in the 1970s, he later supported the Justice Unity Party (1992), the National Development Party (1992-95) and the Thai Nation Party (1995-2001).
Split into simpler sentences: Somchai enlisted as a canvasser for the Social Action Party in the 1970s. He later supported the Justice Unity Party (1992), the National Development Party (1992-95) and the Thai Nation Party (1995-2001).