Page "Taekwondo" Paragraph 46

There are many other private organizations, such as the World Traditional Taekwondo Union and American Taekwondo Association promoting the Songahm style of taekwondo and Rhee Taekwon-Do teaching the military style of taekwondo.

Events and competitions held by private organizations are mostly closed to other taekwondo students.

However, the WTF-sanctioned events allow any person, regardless of school affiliation or martial arts style, to compete in WTF events as long as he or she is a member of the WTF Member National Association in his or her nation, which is open to anyone to join.

The major technical differences among these many organizations revolve around the patterns, called hyeong 형, poomsae 품새, or teul 틀, sets of prescribed formal sequences of movements that demonstrate mastery of posture, positioning, and technique, sparring rules for competition, and philosophy.