Imagine that you are playing a game with your friends, and you are trying to win by building a big tower. You are doing really well, but your tower is getting taller and taller, and it's starting to wobble. You need some help from your mom or dad to hold the bottom of the tower so it doesn't fall over.
Now imagine that instead of playing a game, you and your friends are in a big war against some other kids who want to take over your playground. You are fighting really hard, but you are starting to run out of food, water, and weapons. You are getting tired and scared, and you need some help from outside so you can keep fighting.
That's kind of what happened during the Warsaw Uprising. It was a big battle between the people of Warsaw, who were trying to fight off some bad guys who wanted to take over their city, and the bad guys themselves. The good guys were really brave and fought hard for over two months, but they didn't have enough food, water, or weapons. They were also getting really tired and scared, and they needed some help from outside so they could keep fighting.
Unfortunately, the good guys didn't get much help from outside. Some people in other countries knew about the fighting and wanted to help, but they couldn't do much. The bad guys were really good at blocking off the city and stopping any supplies from getting in. The good guys also didn't have a very good way to communicate with people outside the city, so it was hard to let them know that they needed help.
It was really sad because a lot of good people died during the Warsaw Uprising because they didn't get enough help from outside. But we can learn from their example and try to help each other as best we can when we are facing hard times.