This era of massive migration Motion and settlement Statement was particularly encouraged Influence by President Thomas Jefferson following the Louisiana Purchase , giving rise to Cause_change_of_position_on_a_scale the expansionist philosophy known as `` manifest destiny '' .

through treaties Sign_agreement with foreign nations and native tribes , political compromise Communication , military Military_operation conquest Conquering , establishment Creating of law and order , the building Building of farms , ranches , and towns , the marking of trails and digging Emptying of mines , and the pulling in of great migrations of foreigners , the united states expanded Expansion from coast to coast , fulfilling Achieve the dreams of manifest destiny .

South Vietnamese forces regrouped Cause_to_amalgamate around the capital and defended Defending the key transportation hubs at Phan Rang and Xuân Lộc , but a loss Earnings_and_losses of political and military will to continue the fight Hostile_encounter became Becoming ever more manifest .

At various stages of the investigation Criminal_investigation , possible hijacking Kidnapping scenarios were considered , including crew involvement , and suspicion of the airplane 's cargo manifest ; many unofficial theories have also been proposed Statement by the media .

It had 131 passengers and six crew on the manifest Presence .