Jundallah was a group that existed in Iran. They were a group of people who disagreed with the government of Iran and wanted to make changes. They believed that the government treated some people in Iran unfairly and wanted to help those people. However, they did not believe in solving problems peacefully or following the laws of the country. Instead, they used violence and force to try to make their changes.
Imagine you and your friends are playing a game, but you disagree about the rules. Instead of talking it out and finding a fair solution, one of your friends starts hitting and pushing everyone to get things their own way. This is not a nice way to solve problems, right?
Jundallah did something similar but in a bigger and more dangerous way. They would commit violent acts like bombings and attacks in different parts of Iran. This caused a lot of fear and harm to innocent people who were not involved in the disagreements they had with the government.
Now, the government of Iran did not like Jundallah's actions because they believed in using peaceful ways to solve problems. They tried to stop Jundallah and bring them to justice. However, it was not an easy task because Jundallah operated in a way that made it hard for the government to catch them.
Eventually, the government was able to capture and punish some members of Jundallah, but the group does not exist anymore. It's important to remember that violence is not a good way to solve problems, and it is always better to talk and find peaceful solutions.