Deletion of Battle of Alkali Creek (1865)

Comment: into Powder River Expedition (1865).  It's not that these engagements didn't occur. Its a question of whether or not there's sufficient sourcing and content to warrant a separate article.  I don't think this represents .  The engagement is already covered in the primary article, so a merge seems the right answer (although the tangible result is the same
Stance: merge
Cited policy: Wikipedia:No original research (WP:OR)