Turner 's ideas since 1893 have inspired Influence generations of historians ( and critics ) to explore Scrutiny multiple individual American frontiers , but the popular folk frontier concentrates on the conquest Conquering and settlement Statement of Native American lands west of the Mississippi River , in what is now the Midwest , Texas , the Great Plains , the Rocky Mountains , the Southwest , the West Coast , and Hawaii .

Hostilities continued until August 1970 and ended Process_end with a ceasefire , the frontiers remaining Presence the same as when the war began Process_start , with no real commitment Commitment to serious peace negotiations Communication .

Brazil eventually decided Deciding to intervene in the Uruguayan affair to reestablish Recovering the security of its southern frontiers and its regional ascendancy .

Fighting took place Process_start primarily along the frontiers between New France and the British colonies , from the Province of Virginia in the south to Newfoundland in the north .

Using a combination of aggression , annexation , and quasi-legal means , Louis XIV set about Process_start extending Change_event_time his gains to stabilize and strengthen France 's frontiers , culminating in the brief War of the Reunions ( 1683–1684 ) .

Spain worked Being_in_operation to pacify Recovering a large part of the most violent areas until 1914 , a slow process of consolidation Cause_to_make_progress of frontiers that lasted Process_end until 1919 due to World War Military_operation I .

Western fears of Soviet troops arriving at Arriving the German frontiers increased Cause_change_of_position_on_a_scale the interest of Western powers in the war Hostile_encounter .