Okay kiddo, imagine you're playing hide and seek with your friends. You're hiding behind a big tree, and suddenly a bee lands on your arm and stings you! Ouch! It hurts, so you take off your shirt to look at the bee sting.
Now, imagine you're a soldier in a big battle. You're wearing heavy armor and it's really hot. You start to overheat, and it's important to keep your body cool so you can move quickly and fight better. So, some soldiers might take off their armor or clothes to keep cool.
This is when some soldiers might be seen without any clothes on. But, it's important to remember that nudity in combat is not always appropriate, and it can depend on the situation. In some cases, it's necessary for soldiers to wear protective gear or clothes to stay safe from things like bullets or bombs.
So, while it might seem weird or uncomfortable to see someone without clothes on in combat, it's actually a way to stay safe and perform their job better.