The South Vietnamese attack Vietcong bases. Two days later, a U.S. force of 30,000 joined in the attack. Operations in Cambodia last for 60 days, and discover large North Vietnamese jungle supply depots. They captured 28,500 weapons, along with 16 million rounds of small arms ammunition, and 14 million pounds of rice. Most of the Vietcong. Were able to escape, but there were still 10,000 soldiers killed.