sentences:  The IPKF adapted quickly, with its officers taking off the pips of their ranks, wearing slouch hats and carrying oversize back packs.However, as the advance got bogged down, the battalions, instead of maneuvering around the defenders, were forced to commit more troops under orders from New Delhi.In addition, the LTTE increasingly began to deploy anti-tank mines, taking a further heavy toll on IPKF forces.