Equal forces and no use of nuclear weapons.
After the initial invasion of the South by the North, UN forces under US leadership were able to push back forces into the North. However, China then entered the war creating a surge back toward the 38th parallel. With the US unwilling to use an atomic weapon, the countries were evenly matched and no one was able to make traction.
Thomas Edison's invention of the light bulb changed American life tremendously. Thomas Edison was known for inventing what is called the light bulb, and that made a huge impact to have Americans live on a daily basis. Americans had a hard time seeing things in the dark, which caused a lot of complications when it comes to completing tasks or just going through and out buildings. Because of this invention, Americans could easily see things when inside a house, building, and when it's night time. The light bulb gave light so people can do tasks without having to do them in the dark. Without the light bulb, it would be very complicated to do things in the dark, and people would have a hard time going through the night or dark places.
To allow American merchant ships to access war zones
