sentences:  Two battalions of the 163rd Regimental Combat Team landed in nine waves against only light opposition Initially, the only resistance they encountered from consisted of only a few rifle shots, with most Japanese defenders fleeing into the hills as the overwhelming force continued to arrive.After the beachhead had been secured, No.62 Works Wing of the Royal Australian Air Force (RAAF) went ashore on the morning of 22 April to help secure and repair Tadji Airfield.