The Most Venerable Order of the Hospital of Saint John of Jerusalem ( French : L'Ordre très vénérable de l'hôpital de Saint-Jean de Jérusalem ) , also referred to as the Order of St. John , is a royal order of chivalry established in 1831 and found today throughout the Commonwealth of Nations , Hong Kong , Ireland , and the United States of America , with the world-wide mission `` to prevent and relieve sickness and injury , and to act to enhance the health and well-being of people anywhere in the world . ''
The Most Venerable Order of the Hospital of Saint John of Jerusalem ( French : L'Ordre très vénérable de l'hôpital de Saint-Jean de Jérusalem ) , is a royal order of chivalry established in 1831 and found today throughout the Commonwealth of Nations , Hong Kong , Ireland and the United States of America .