Okay kiddo, so you know how sometimes people who love each other want to get married and create a family? Well, some people love others who have the same gender as themselves, and that's called a same-sex relationship.
Now, for a long time, some people didn't want same-sex couples to get married and live together like other married couples. But, over time, some places started to allow same-sex couples to get married and enjoy the same rights as other married couples.
In some countries, the military is a big part of life. They are the people who protect a country from bad guys and keep it safe. For a long time, people in the military didn't allow same-sex couples to live together if one of them was in the military.
But, over time, things changed. In some countries, same-sex couples can now live together if one of them is in the military. This means they can be a family, just like any other family.
It's important to remember that everyone deserves to be loved and to create a family, no matter who they are or who they love.