ELI5: Explain Like I'm 5

Declaration of war by the United Kingdom

When countries don't get along, they sometimes decide to fight each other. This is called a war. In order to start a war, one country needs to tell the other country that they are going to fight them. This is called a declaration of war.

The United Kingdom is a country that has been involved in many wars over the years. When they want to start a war, they have to tell the other country that they are going to fight them. They do this by making an announcement, which is usually made by the leader of the country.

In the past, this announcement was made in a very official way. The leader would gather all of the important people in the country together and give a speech. They would say something like, "We are now officially at war with this other country." This would let everyone know that the war had started.

Nowadays, things are a little bit different. The United Kingdom may still make an announcement, but it might be done in a different way. For example, they might make a statement on social media or on TV. They might also send a message directly to the other country's leader.

Once the declaration of war has been made, the two countries can start fighting each other. This can be a very dangerous and scary time for everyone involved. That's why it's important for countries to try and solve their problems without fighting if they can. But if they can't, then they may have to declare war in order to protect themselves and their people.