 Complete the following phrase:  The colours of units fighting in open order as light infantry were particularly vulnerable to attack and, as early as 1808, many such units did not carry their colours in the field. In battle the colours were sometimes sent to the rear if they were considered to be at risk or attracting too much enemy fire. Sometimes commanders considered the carrying of colours to be a hindrance to their units and ordered them left behind, as did General James Abercrombie during the 