The US. Marine corps are one of the four branches of the US army and is highly regarded as one of the toughest to get into. The training is rigorous and can become very taxing physically, mentally, and emotionally, causing many people to quit before they even get in.
This non-fiction piece tells a real story of how Evan Wright, a journalist who followed the US marines 1st Reconnaissance Battalion, a special division, andhis observations and thoughts on them.
Evan notes that this division is very goofy and can sometimes seem like everyday natural humans, watching Kung Fu movies in their free time. But on the battlefield, they're harsh warriors and that other side is turned off. They're serious and have a harsh mindset towards themselves and others
Drill instructors were designed to instill this mindset into the people protecting the country though, using harsh training and methods to strengthen the minds of the recruits. This is to ensure that they don't fold during the pressure of battle, and keep fighting for our freedom
Wright took note on the methods used to train the recruits, which one of them involved very severe punishments for not listening to an instructor's commands or living up to their expectation. He almost had to join the recruits who had to bury themselves in mud for the freezing night when he tried to ask questions. He noticed something interesting here though, which involved the recruits singing songs together to pass by the hard times, thus working together.
Evan frequently went out to the battlefield in Iraq and Afghanistan, ignoring the recruits' warnings and they eventually got used to him. He observed that many of the Marines always shot without caring, probably due to the hundreds of lives they see every day. This caused him to believe that marines suffer from emotional trauma and stress that disconnects them from the reality that they're taking lives.