how did the us government promote the concept of manifest destiny

Emery says:

The concept of Manifest Destiny was a belief widely held in the United States during the 19th century that it was the nation’s destiny and duty to expand its territory across the North American continent from the Atlantic to the Pacific Ocean. While the concept was not an official government policy, it was promoted and supported by various means by the U.S. government and political leaders of the time. Here are some ways in which the U.S. government promoted the idea of Manifest Destiny:

Legislation and Policies: The U.S. government implemented legislation and policies that facilitated territorial expansion, such as the Louisiana Purchase (1803), which doubled the size of the United States, and the Oregon Treaty (1846), which settled the boundary dispute with Britain and secured U.S. control over the Oregon Territory.

Indian Removal: The U.S. government forcibly removed Native American tribes from their ancestral lands in the southeastern United States through policies such as the Indian Removal Act of 1830. This cleared the way for white settlement and expansion into new territories.

Support for Westward Expansion: The U.S. government provided support and incentives for westward expansion, including land grants, subsidies for infrastructure projects such as roads and railroads, and military protection for settlers moving into frontier regions.

Military Intervention: The U.S. government used military force to secure and defend territory, including conflicts with Native American tribes, Mexico (such as the Mexican-American War of 1846-1848), and other nations with territorial claims in North America.

Propaganda and Rhetoric: Government officials and political leaders promoted the idea of Manifest Destiny through speeches, writings, and propaganda campaigns aimed at popularizing the concept and garnering public support for territorial expansion.