I suppose you mean the Vietnam War, Korean War and both World Wars since you chose those types of categories. I will give you answer for each one.
World War 1: Some of our ships were sunk by the Germans. Political leaders of the US also chose to declare war on Germany for many reasons that were really rather dumb and senseless. (no time to get into it all, that entire war was senseless and accomplished nothing)
World War 2: President Roosevelt wanted to help the Brits with their dilemma in World War 2 but the Americans did not. Japan attacked the US and then the Americans wanted to fight. Adolph Hitler declared war on the US. Hence they were involved whether the American people wanted it or not.
Korean War was a war of the Cold War. The Koreans asked the US (and I think the United Nations for help). Initially they went over to help them but did not send thousands of troops or very well trained troops. The war escalated so the US became involved in the war.
Vietnam War: The US was requested by the South Vietnamese Government to come help them with war consultants and later troops to teach and help. Later the war escalated and the micromanaging Presidents and War Cabinets sent in hundreds of thousand of troops and drafted men into that war.
America is not involved in all wars but they are involved in most of the United Nation dilemmas in which troops are sent to some place in the world. They did start the war against the Afghans and the Iraqis that were considered part of the 9/11/2001 attack on the Twin Towers.
The US enters into conflicts in foreign nations in order to help them. The US enters into conflicts in order to find a peaceful solution for the foreign nation.
we try to make peace
World War I - because it brought in the whole of the British and German Empires, and involved conflicts in Africa, South America etc.
Comparing it with Central American countries, yes! Nicaragua has the largest and best equipped military force of Central America. Worldwide, not too strong.
The United States of America currently has conflicts with the countries of Iran and Syria. The U.S. also has a tense relationship with Cuba.
America and American troops were not involved in the basically maritime-only Russo-Japanese War, however American President Theodore Roosevelt was awarded the Nobel Peace Prize for mediating the end of the war between the two belligerents.
No, World War II was not the last war declared by the United States. The US has engaged in military conflicts since then, such as the Korean War, Vietnam War, Gulf War, Afghanistan War, and Iraq War, among others. However, these conflicts were not officially declared as wars by Congress.
World War I - because it brought in the whole of the British and German Empires, and involved conflicts in Africa, South America etc.
America did not want to be involved in distant conflicts. But when Germany sunk the Lucitania, America had no choice they had to enter.
US Civil War and Indian Wars (Frontier Wars).
No, not in any military sense anyway.
Comparing it with Central American countries, yes! Nicaragua has the largest and best equipped military force of Central America. Worldwide, not too strong.
During WW 1, in 1917, America entered the war with their military. Prior to this, America was supplying the Allies with goods. == ==
America's Sweethearts grossed $160,648,493 worldwide.
The United States of America currently has conflicts with the countries of Iran and Syria. The U.S. also has a tense relationship with Cuba.
America and American troops were not involved in the basically maritime-only Russo-Japanese War, however American President Theodore Roosevelt was awarded the Nobel Peace Prize for mediating the end of the war between the two belligerents.
No, World War II was not the last war declared by the United States. The US has engaged in military conflicts since then, such as the Korean War, Vietnam War, Gulf War, Afghanistan War, and Iraq War, among others. However, these conflicts were not officially declared as wars by Congress.
America is not in any way involved in the Gaza Strip Crisis. The only tangential involvement is that America supports the State of Israel and trades military hardware with them. The United States was diplomatically, militarily, and economically absent from the Gaza Strip and Operation Cast Lead.
Prior to December 7th 1941, the United Stares was not involved in the conflicts of WW2. Imperial Japan changed all this by attacking the US Naval base in Pearl Harbor, Hawaii.