Yes. Just so you know, I'm only in 11th grade, so I might not be using the right vocab, but I'll try my best.
It can be justified the same way that it was during the Korean War. In order to repel communism in South Korea, the US troops were launched. This was a unilateral military action. In the same way that the US used the Monroe Doctrine to help aid and enforce their rule in other places, this is what happened during the Iraqi War. The US saw an unjust system of government reigning unfairly, so they intervened to overthrow it. The justification there was that they should have been able to choose their own government (in short, they should have a fair and free democracy).
Stress squeezing an object
The opportunities are:
- to work as Medical professionals in a millitary base
- Part of Medic soldiers that provide first aid in the battle field.
- to work as nutritionists for the soldiers
- To work as a part of red cross
Trained nurses had the option to either join their country's millitary or join a neutral party to be involved in the war.
If they choose to serve their country, their skill set would be used to treat ill / wounded soldiers in the camp, ensuring that the soldiers have the energy necessary for the war, or learn to use a weapon and join as the medic that goes a long with the soldiers to the battle field.
If they choose a neutral party such as the red cross, they can provide medical assistance for all the soldiers that involved in the war. Those soldiers are banned to shoot the redcross since they are only there to provide medical help to both sides.