the school. Later in the course, Ranger students will be expected to conduct, and navigate, patrols at night without violating light discipline. The land navigation test instills this skill early in each student's mind, thus making the task second nature when graded patrolling begins. A 2.1 mile buddy run, followed by the Malvesti Field Obstacle Course, featuring the notorious "worm pit": a shallow, muddy, 25-meter obstacle covered by knee-high barbed wire. The obstacle must be negotiated—usually several times—on one's back and belly. Demolitions training and airborne refresher training. Modern Army Combatives Program (MACP) training was removed as a part of a new POI at the start of 2009; it was reinstated with Class 06–10. The Combatives Program was spread over all phases and culminated with practical application in Swamp Phase. However, MACP has been removed from Ranger again, starting with the Combatives Program in Mountains and Florida and followed by the removal of RAP week combatives in class 06–12. A 12-mile forced, individual ruck march with full gear on roads and trails surrounding Camp Rogers. This is the last test during RAP and is a pass/fail event. If the Ranger student fails to finish the march in under 3 hours, they are dropped from the course. (12 miles is approximately 20,000 metres.) The emphasis at Camp Darby is on the instruction in and execution of Squad Combat Operations. The phase includes "fast paced instruction on troop leading procedures, principles of patrolling, demolitions, field craft, and basic battle drills focused towards squad ambush and reconnaissance missions". The Ranger student receives instruction on airborne/air assault operations, demolitions, environmental and "field craft" training, executes the infamous "Darby Queen" obstacle course, and learns the fundamentals of patrolling, warning and operations orders, and communications. The fundamentals of combat operations include battle drills (React to Contact, Break Contact, React to Ambush, React to Indirect Fire, and Crossing a Danger Area), which are focused on providing the principles and techniques that enable the squad-level element to successfully conduct reconnaissance and ambush missions. As a result, the Ranger student gains tactical and technical proficiency and confidence in themselves, and prepares to move to the next phase of the course, the Mountain Phase. Mountain phase The second phase of Ranger School is conducted at the remote Camp Merrill near Dahlonega, Georgia by the 5th Ranger Training Battalion. Here, "students receive instruction on military mountaineering tasks, mobility training, as well