 The Jungle Operations Course included in-field exercises.For example, in 1966a company of 103 students from Panama and 4 other Latin American countries enrolled in the Jungle Operations Course, U.S. Army School of the Americas, Fort Gulick, Canal Zone, recently completed a 9 day tactical exercise crossing the Isthmus of Panama, a ground distance of about 55 miles, through jungle, swamp and water.Symbolically following in the footsteps of Spanish explorers 300 years ago, the crossing began with an amphibious landing on the Pacific side of the Isthmus.