Sentai is a Japanese term that translates to "squadron" or "task force." It refers to a genre of entertainment, particularly in television, where a team of heroes, often wearing colorful costumes, fights against evil forces. Each member typically has unique abilities and weapons, and they often combine their powers to form a larger robot or vehicle, known as a mecha. The most famous example of Sentai is the Super Sentai series, which has been running since the 1970s. This franchise has inspired many adaptations worldwide, including the popular Power Rangers series in the United States. The themes often include teamwork, friendship, and the battle between good and evil.