Complex sentence: Colley's decision to initiate the attack at Majuba Hill when truce discussions were already underway appears to have been foolhardy, particularly as there was limited strategic value, the Boer positions were also out of rifle range from the summit.
Split into simpler sentences: Colley's decision to initiate the attack at Majuba Hill when truce discussions were already underway appears to have been foolhardy, particularly as there was limited strategic value. The Boer positions were also out of rifle range from the summit.