Answer:
The Thrilla in Manila was the third and final boxing match between Muhammad Ali and Joe Frazier. It was contested in 1975 for the heavyweight championship of the world at the Araneta Coliseum in Cubao, Quezon City, Philippines, on Wednesday, October 1.
Explanation:
The answer is: The Law of Land Warfare, Uniform Code of Military Justice, and Code of Conduct.
The answer may vary from country to country but on an international level the United Nations Charter also provides code of conducts on how modern armies should function in times of war.
These are important in order to provide a moral structure to an Army which can become, as evidenced in history, quite ruthless.
Farmers were worker who were tied to the land
Before 1898, Spain had had the colony of the Philippines for a long time. However, after the Spanish-American war, it gave that colony over to the United States, which caused it to get politically involved with the Philippines.
Therefore, the answer would be the Spanish-American War.