A New Form of ExpansionBefore the start of the Spanish-American War in the late 19th century and World War I in the early 20th century, the United States had encouraged expansion as a means of gaining power. For example, the Frontier thesis conveyed that it is through the expansion of new lands that humanity would continue to progress. The United States also expressed its impatience to expand through manifest destiny: the desire to expand from sea to sea for the purpose of owning and cultivating as it should. as much land as possible. However, in the late 19th and early 20th centuries, America experienced a change. It went from an ambitious, power-seeking country to its beginnings as the richest country and a superpower. America, it seems, became a country that helped the world, not itself, through its expansion. Even though America's path of expansion was unstoppable in its plan of manifest destiny; through trade, foreign policy and social class evidence, it can be confirmed that in the late 19th century and early 20th century, the "new world power" was seen as a dependent source of third-party countries. world and the reason why the United States broke away from its continual past of expansionism was to maintain order and promote the constancy of each country. To maintain order, the United States abused its right to economic power. Although the United States hoped for a logical foreign policy, at the same time it seemed to be abusing its economic power, ensuring the country's "growing production" (Doc C) and its promotions that "enable a country to expand its external influences” (Doc C). C).Middle of paper, as immigrants began to enter the American job market, Roosevelt used his "Square Deal" to declare that he would use his powers as president. To safeguard workers' rights. In America and all foreign countries, U.S. expansion efforts continued to pursue its ancient goal of maintaining Manifest Destiny and expanding its economic power globally. Yet they have begun to chart a new path of expansion that leads to the support of global stability and order. Their way of thinking to achieve this was not achieved by the conviction of becoming a global superpower, but was imposed on the United States by the foreign masses of the underdeveloped countries, who relied on it for political, economic stability and social at the end of the 19th and beginning of the 20th century..