 Complete the following phrase:  Blackforce consisted of roughly 3,000 mena brigade-sized unitbut roughly half of them were non-combat soldiers such as cooks, medics and drivers. Blackburn organized his men into three battalions1st battalion mainly consisting of a preexisting a href23rd20Machine20Gun20Battalion2028Australia2923rd Machine Gun Battaliona, 2nd mainly made up of the a href22nd20Pioneer20Battalion2028Australia2922nd Pioneer Battaliona, and a 3rd battalion made up of engineers, soldiers who escaped the 