Marines and Sailors with 1st Battalion, 5th Marine Regiment, practice using a combat minesweeper during an improvised explosive device lane training course, June 9. Marines and Sailors with 1/5 were given an in-depth look at the many kinds of explosives and IED's that are being used in theater and the kinds of materials the enemy uses to make them. 1/5 is a subordinate element of Regimental Combat Team 3 whose mission is to conduct counter insurgency operations in southern Afghanistan with a focus on training and mentoring the Afghan national police.