sentences:  During some national camps of the Cadet Corps, the Defense Ministry helps in organizing activities that are more military-oriented such as letting the cadets join in patrolling the Belgian coast with a patrol vessel of the Belgian Navy, physical training and obstacle courses, and ceremonial events such as the annual national military parade in Brussels on July 21st.The Belgian Sea Cadet Corps is also a member of the International Sea Cadet Association and often participates in international exchange programs.After World War I, soon after the creation of the Torpedists and Seafarers Corps which was an early version of the Belgian Navy, a school was opened for cadets of the Belgian Maritime League.