Which territory did the U.S. annex in 1898 that was formerly an independent republic?

The U.S. annexed Hawaii in 1898, which had been an independent republic prior to its annexation. Hawaii became a strategic location for the United States in the Pacific, particularly for military and economic reasons. The islands had a thriving sugar industry, and American planters had significant interests there. In 1893, a group of American planters orchestrated a coup against Queen Liliuokalani, leading to the establishment of a provisional government that sought annexation by the U.S. The formal annexation occurred with the signing of the Newlands Resolution in 1898, making Hawaii an important stepping stone for U.S. expansion and influence in the Pacific region.