美国马萨诸塞大学论文代写：门罗主义
1823年，美国总统詹姆斯·门罗(James Monroe)以拉丁美洲国家的利益发表了第一份官方声明，称其为“门罗主义”(Monroe Doctrine)。根据这一点,
1)欧洲不再允许将自己的殖民地扩展到西方国家。
2)美国将考虑对欧洲国家的任何干涉，在西方国家的事务中，对其自身的安全构成威胁，并将保护各共和国免受欧洲的干涉。
3)美国不会参与欧洲的利益，也不会影响拉丁美洲国家的殖民形势，等等。
尽管门罗主义，美国对帮助拉丁美洲国家反对欧洲干涉的兴趣较小，而且对改善他们的经济关系更感兴趣。因此，美国从巴西进口咖啡，从古巴进口糖，从墨西哥进口矿物，并出口农产品(贝瑟尔&罗克斯堡，1988)。
此外，美国对扩大其领土的兴趣导致了墨西哥-美国战争(1846 – 1848)。这场战争是在政治分歧和军事上毫无准备的墨西哥之间进行的，而美国的目标是美国，因为在德州边界上的争端。墨西哥在战争中损失了大约一半的领土(90万平方英里)，包括现在的加州、内华达州、犹他州、新墨西哥州、亚利桑那州y科罗拉多州以及德克萨斯州、俄克拉荷马和堪萨斯州的部分地区(Howe,2002年)。《瓜达卢佩·伊达尔戈条约》，也称为《和平条约》，美国和墨西哥共和国之间的友谊、限制和殖民条约，是在两国之间签署的，目的是在1848年结束战争。该条约将墨西哥领土的三分之一交给了美国，包括加利福尼亚(Evera,1981)。
美国马萨诸塞大学论文代写：门罗主义
In 1823, the President of the United States, James Monroe, came with the first official statement, in the interest of the Latin American nations, called the “Monroe Doctrine”. According to this,
1)Europe was no longer allowed to expand their colonies to the Western countries.
2)The United States will consider any interference of the European countries, in the affairs of western countries, as a threat to its own security and will protect the republics against the European interference.
3)The United States will not get involved in the European interests and will do nothing to effect the colonial situation of the Latin American nations, and so on.
Despite the Monroe Doctrine, United States showed lesser interest in helping the Latin American nations against the European interference, and were more interested in improving their economic relations. As a result of this, the United States was importing coffee from Brazil, sugar from Cuba and minerals from Mexico, and was exporting agricultural products (Bethell & Roxborough, 1988).
Furthermore, the interest of the United States for expanding its territories lead to the Mexican-American War (1846-1848). The war was fought between the politically divided and militarily unprepared Mexico and the goal oriented U.S. because of the dispute over Texas’s border. Mexico lost approximately half of its territory (900,000 square miles) in the war, which included modern-day California, Nevada, Utah, New Mexico, Arizona y Colorado and parts of Texas, Oklahoma and Kansas (Howe, 2002). The Treaty of Guadalupe Hidalgo, also called the Treaty of Peace, Friendship, Limits and Settlement between the United States and the Mexican Republic, was signed between the two countries in order to end the war in 1848. This treaty gave more than one third of the Mexico’s territory to the United States, including California (Evera, 1981).
