I believe it would be "Containment" because they were trying to keep Northern Korea from making Southern Korea communist.
Answer: They were led by former White House physician Col. Leonard Wood and future president Theodore Roosevelt. The Rough Riders helped fight the Battle of San Juan Hill, which helped win the war. Many of the members were from Arizona and included cowboys, ranchers and miners. The American side included the 1st U.S. Volunteer Cavalry, under Leonard Wood, the 1st U.S. Regular Cavalry, and the 10th U.S. Regular Cavalry (this consisted of Afro-American soldiers, then called Buffalo soldiers). Supported by artillery, the American forces numbered 964 men, supported by 800 men from Castillo. The Rough Riders and African American cavalry units contributed to the war effort by winning the battles for Kettle and San Juan hills and helping to capture Santiago. It also gave the United States possession of the Philippines for the price of $20 million.
Explanation:
Religion were tolerated
currancy was gold and etc