Complex sentence: The brigade was to advance along the southern parallel track as far as Waju but the 2/1st Battalion leading, initially overshot this and had to retrace its steps but was ready to advance north on 7 November.
Split into simpler sentences: The brigade was to advance along the southern parallel track as far as Waju. The 2/1st Battalion leading, initially overshot this and had to retrace its steps but was ready to advance north on 7 November.