A martyrdom video is a video made by someone who believes in a certain cause or religion and is willing to die for it. In the video, they usually explain why they feel strongly about the cause and why they are willing to sacrifice their life for it.
Imagine if you really loved a game or a toy, and you felt like you would do anything to protect it. That is what these people feel like about their beliefs. They are so passionate about it that they are willing to give up everything, even their lives, to defend it.
Sometimes, people who make martyrdom videos are part of a group or an organization that wants to spread their message through violence. This is not a good thing and can hurt many innocent people.
It is important to remember that violence and hurting others is never okay. It is much better to find ways to peacefully share our beliefs and work together to make the world a better place for everyone.