Complete the following sentence: The Kokoda Track Memorial Walkway is a memorial walking track located in the suburb of Concord West, Sydney, New South Wales, Australia. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️
Papua-New Guinea campaign of July 1942 till January 1943.