Why was it necessary the US join the side of the allies?

What other considerations besides geographic ones did the allies have to take into account when choosing a site for the invasion?

Rivalries between european imperialist powers and the growth of european militaries contributed to which outcome in the early 20th century? o a. many european powers were eager to go to war with one another. o b. european states became less concerned about controlling overseas empires. o c. small countries became more willing to join powerful empires. o d. the alliance system that maintained a balance of power in europe broke down.

Which was the outcome of the six-day war of 1967