This is coolbert:
As it was in Vietnam so it is now in Syria and Iraq.
As reported by DEBKAfile:
"ISIS goes underground for guerrilla warfare against new US 'lily pad' strategy in Iraq"
"Following the US plan deploy American advisers in 'lily pad' bases to work with Iraqi troops near the front lines, the Islamic State of Iraq and the Levant has adopted a new strategy. DEBKAfile reports exclusively that ISIS is turning to tunnel warfare in pursuit of guerrilla tactics on all its active fronts in Iraq, Syria, Lebanon, Iraq, Egyptian Sinai and the Palestinian Gaza Strip"
Tunnel warfare serving both a DEFENSIVE and OFFENSIVE purpose. Hide from American air strikes and also allow when attacking for combatants to appear out of no-where.
Bring out the dowsing rods!!