The Little Entente was like when you and your friends team up to protect yourselves from bullies at school. In the early 1900s, there were some big bullies in Europe - Germany, Italy, and Austria - who were causing problems for other countries. Then, three countries - Czechoslovakia, Romania, and Yugoslavia - decided to team up and form the Little Entente to protect themselves from these bullies.
It was kind of like the three amigos making a pact to stick together and protect each other. Together, they agreed to help each other out if any of them were attacked by the bullies. This made them stronger and more united.
Just like how you and your friends might have a secret handshake or a code word to make sure you recognize each other, the Little Entente had their own secret pact that they signed to make their alliance official. They also had regular meetings to discuss problems and come up with solutions together.
Overall, the Little Entente was a group of friends who banded together for protection against bullies in Europe. They stuck together and made each other stronger through their friendship and cooperation.