Fort Saint-Jean is a historic fortress located in Montreal, Canada. Built in the 17th century, it was designed to protect the city from potential invasions and played a significant role in the defense of the area. The fort features thick stone walls and strategic positioning along the Saint Lawrence River. Today, Fort Saint-Jean is part of the Royal Military College of Canada and serves as a training facility. It is also a popular tourist attraction, offering visitors a glimpse into the military history of the region. The site hosts various events and educational programs throughout the year.