The Mexican Revolution also lead to significant conflict reaching across the US-Mexico border which was still mostly within frontier territory, known as the Mexican Border War (1910-1919). Flashpoints included the Battle of Columbus (1916) and the Punitive Expedition (1916–17). The Bandit War (1915-1919) involved attacks targeted against Texan settlers. Also, a few minor fights involving Indians happened as late as the Bluff War (1914–1915) and the Posey War (1923).