What are the pros and cons of an embargo

The pros of an embargo are usually that the country which has it imposed changes their ways. Since embargos are usually introduced in cases where a nation violates human rights or prevents democracy or similar things, the pros are that the embargo is a motivation for the government that depends on trade to change their ways to become more democratic.

Cons are that they are often ineffective for various reasons. For example, a country may be fully self-sufficient so it doesn't care if it has an embargo since it can fulfill the needs of the people regardless. Another is also if the people are willing to suffer from being in an embargo out of spite for those who introduced the embargo so they don't change their ways.

Harding, Coolidge, and Hoover were the presidents during the 1920s. The demand and mantra of the 1920s was a "return to normalcy". The goal of this period was to stay out of world affairs as Americans felt slighted by the impact of World War I as well as return to the economic polices of the Gilded Age. Domestically, these presidents instituted immigrant restrictions, removal of Progressive Era economic regulations, and a laissze-faire approach to the economy and government. Foreign policy included refusal to accept the Treaty of Versailles and to join the League of Nations. All treaties that took place were in an effort to remove the US from alliances and threats of war.