Final answer:
The US expeditions into Oklahoma and Louisiana shared goals of expansion, faced significant challenges, and were driven by political objectives, including territorial claims and addressing the Missouri Crisis.
Step-by-step explanation:
The expeditions into Oklahoma and the Louisiana Territory, specifically the journey of Lewis and Clark's Corps of Discovery, share several common elements. Firstly, each expedition had the goal of expanding American influence and power, with mandates to explore, map, and identify new lands for economic potential. Secondly, all expeditions faced significant challenges such as harsh weather conditions, difficult terrain, and encounters with wildlife and native tribes. Lastly, these expeditions were driven by political objectives, including securing new territories such as Florida through the Adams-OnĂs Treaty and addressing controversies such as the Missouri Crisis and the ownership of Texas.