Complex sentence: While serving as chief of military intelligence in 1993, he was instrumental in forcing the departure of President Jorge Serrano after Serrano attempted a "self-coup" by dissolving Congress and appointing new members to the Guatemalan Supreme Court.
Split into simpler sentences: While serving as chief of military intelligence in 1993, he was instrumental in forcing the departure of President Jorge Serrano. The president had attempted a "self-coup" by dissolving Congress and appointing new members to the Guatemalan Supreme Court.