The chopper made transportation of military personnel in the war hot areas easier as it could land in any place.
The Huey helicopter also rendered trench battles obsolete. A symbol of the USA military, the chopper made rescue missions possible in the battle line.It also helped to harness a more tactical air combat.
Answer:
CIVIL WAR. The sectional controversies that divided the North and South in the 1850s deeply troubled Texans (see ANTEBELLUM TEXAS). While most Texans had a strong attachment to the Union that they worked so hard to join in 1845, they expressed increasing concern over the attacks upon Southern institutions by Northern political leaders. Although only one Texas family in four owned slaves, most Texans opposed any interference with the institution of slavery, which they believed necessary for the continued economic growth of the state.
Explanation:
Great Britain is a Island Nation, and without control of the water, the British cannot import materials, food, and other necessities it needs to survive, feed it's population, and build weaponary. So the control of the ocean is essential for their very survival
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The relations between them were friendly. Tribes provided food, clothing and shelter for the dependent settlers in exchange for metal tools like knives and hatchets.