Despite its informal nature, the breach of a gentlemen`s agreement could have a negative impact on trade relations if a party decides to break its promise. A gentlemen`s agreement can also be called a ”gentleman`s agreement” and can be concluded by a handshake or not. A gentlemen`s agreement is an informal, often un written agreement, or transaction that is only supported by the integrity of the counterparty in order to effectively comply with its terms. Such an agreement is usually concluded informally, orally and is not legally binding. Although agreements between individuals often create legally binding obligations, there may be cases where mutual commitments do not result in a legally enforceable agreement. Sometimes called gentlemen`s agreements, the parties may respect them because moral obligations impose respect or because future relations become more difficult if the current agreement is broken. International organizations may also need such informal arrangements to maintain community among members. The San Francisco earthquake of April 18, 1906 destroyed municipal archives that had fueled fears of intrusion by the supposedly more aggressive, intelligent, and nodding Japanese. On October 11, 1906, when temporary and rehabilitated public schools were ready to be reopened, the San Francisco Board of Education ordered the separation of Japanese and Korean schoolchildren from the already separated Chinese. Although the few Koreans followed the order, the Japanese parents strongly opposed. The Japanese government formally protested that the order was contrary to the 1894 treaty. .