Question

Which territory was gained through an annexation in 1845 after declaring itself independent from Mexico.

Answer 1

Texas I think. Texas gained independence and merged into the US.

Answer 2

Texas

Step-by-step explanation:

Texas was annexed by the United States in 1845 and became the 28th state. Until 1836, Texas had been part of Mexico, but in that year a group of settlers from the United States who lived in Mexican Texas declared independence.