Gentlemen`s agreements, because they are informal and often not written, do not have the same legal and regulatory protection as a formal treaty and are therefore more difficult to enforce. The increase in Japanese immigration, which was to replace some marginalized Chinese agricultural workers, has met with concerted opposition in California. To appease Californians and avoid an open break with Japan`s emerging world power, President Theodore Roosevelt negotiated the diplomatic agreement in which the Japanese government took on the responsibility of drastically limiting Japanese immigration, especially that of workers, so that Japanese children could continue to attend integrated schools on the West Coast. However, family migration could continue, as Japanese men, with sufficient savings, could bring wives through arranged marriages (“pictured wives”), their parents and minor children. As a result, the Japanese-American population was more gender-friendly than other Asian-American communities, and continued to grow through natural increases, which led to increased pressure to end immigration and further reduce residents` rights. Gentlemen`s agreements have often been concluded in international trade and international relations, as well as in most industries. Gentlemen`s agreements were particularly prevalent at the birth of the industrial era and well beyond the first half of the 200th year, as regulations often delayed new business practices. It was found that such agreements were used, among other things, to control prices and limit competition in the steel, iron, water and tobacco industries. Let me begin first for the laborious thoroness and admirable temperament with which you have gone in the case of the treatment of the Japanese on the coast . I had a conversation with the Japanese ambassador before leaving for Panama; read to him what I had to say in my annual message, which he obviously liked very much; and told him that, in my view, the only way to avoid permanent friction between the United States and Japan was to limit as much as possible the movement of citizens from each country to each other to students, travellers, businessmen and others; As no American worker tried to enter Japan, the need was to prevent all immigration of Japanese workers – that is, from the Coolie class – to the United States; that I really hoped that his government would prevent his coolies, all their workers, from coming to either the United States or Hawaii. He was strongly committed to this view and said that he had always opposed Japanese coolies going to America or Hawaii… I hope my message will calm their feelings for the government to tacitly stop all immigration of coolies into our country.