What did the claiming countries of America understand? To hold the land, they needed to set up trading posts.
O To hold the land, they needed to set up forts.
To hold the land, they needed to send settlers.

The claiming countries of America understands that their said pieces of land can not be reclaimed. Explanation: The United States of America was created on July 4, 1776. Some of the countries that laid claim of America are; Britain, France, and Spain.

Explanation:

the following best describes postwar era writers in their works:

many writers,authors,novelists,poets concentrated more on social art and social writing and stayed away from political writings.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.