While the 9th Division secured the coastal region of the Huon Peninsula the 7th Division drove the Japanese from the inland Finisterre Range. The Finisterre Range campaign began on 17 September, when the 2/6th Independent Company was air-landed in the Markham Valley. The company defeated a larger Japanese force at Kaiapit and secured an airstrip which was used to fly the Division's 21st and 25th Brigades in. Through aggressive patrolling the Australians forced the Japanese out of positions in extremely rugged terrain and in January 1944, the division began its attack on the key Shaggy Ridge position. The ridge was taken by the end of January, with the RAAF playing a key supporting role. Following this success the Japanese withdrew from the Finisterre Range and Australian troops linked up with American patrols from Saidor on 21 April, and secured Madang on 24 April.