A Sailor demonstrates the strength of a round turn by having Tanzanian People's Defense Force sailors pull the line.

DAR ES SALAAM, Tanzania (Apr. 16, 2011) A Sailor demonstrates the strength of a round turn by having Tanzanian People's Defense Force sailors pull the line. The round turn is a type of knot used by sailors to secure a boat to a dock. Combined Joint Task Force-Horn of Africa is partnering with the Tanzanian People's Defense Force Navy to share best practices on small boat operations to increase maritime capacity and security. (U.S. Air Force photo by Staff Sgt. Elizabeth Rissmiller) File# 110412-F-MN146-137