Book excerpt: Indonesian national heroes are individuals who have made significant contributions to the struggle for Indonesia's independence and the nation's development. They are figures who have sacrificed everything for the welfare of the people and the country. These are fighters who not only battled for their own interests but also for the well-being of the Indonesian people. They faced various challenges and obstacles in their struggle, ranging from colonization and war to revolution. Indonesian national heroes have made substantial contributions to advocate for the rights and dignity of the Indonesian people, as well as to fight for Indonesia's independence from Dutch colonization. This book will discuss Indonesian national heroes, particularly those from the island of Sumatra.