which of the following is a primary reason for the spanish expansion into texas?

A primary reason for the Spanish expansion into Texas was to secure strategic alliances with native peoples. This expansion aimed to establish control over the region by creating alliances that would help defend and support Spanish territorial claims against rival powers, such as the French, and manage relations with the native populations. Additionally, the Spanish established missions and presidios in Texas as part of a strategy to spread Christianity, secure loyalty from native peoples, and create a buffer zone to protect their northern territories, especially from French encroachment.