Repatriation is when something or someone is sent back to their home country or place. It's kind of like when you go on vacation or visit a friend's house, but then you have to come back home eventually.
Sometimes, people need to be repatriated because they are in a different country and they don't have the legal right to stay there anymore. This could happen if they were there on a temporary visa or if they did something wrong, like breaking the law.
Other times, people choose to be repatriated because they miss their home country or they want to be closer to their family and friends.
Things can also be repatriated, like artifacts or cultural objects that were taken from one country and brought to another. These things are usually repatriated to their original country so they can be preserved and protected.
Overall, repatriation is about going back to where you belong, whether it's a person or a thing.