Question: who was the u.s. military officer that was at the head of the iranian arms deals
Answer: On the day of McFarlane 's resignation , Oliver North , a military aide to the United States National Security Council ( NSC ) , proposed a new plan for selling arms to Iran , which included two major adjustments : instead of selling arms through Israel , the sale was to be direct , and a portion of the proceeds would go to Contras , or Nicaraguan paramilitary fighters waging guerrilla warfare against the democratically elected Sandinista government , at a markup .