A.) They were forced to move westward
I take it you mean modern Israel.
Basically, the territory of Israel increased in a few steps, but otherwise remained stable. The increases were usually connected with military conflicts. An example is the Little Triangle in nothern Israel, that was incorporated into the country (in exchange for another region though).
Please note that this is a politically charged question and any responses will be biased.
Cuba. Here is evidence: "U.S. victory in the war produced a peace treaty that compelled the Spanish to relinquish claims on Cuba, and to cede sovereignty over Guam, Puerto Rico, and the Philippines to the United States. The United States also annexed the independent state of Hawaii during the conflict."
Source: https://history.state.gov/milestones/1866-1898/spanish-american-war
Answer:
Ship building was their main industry
Explanation: