 Complete the following phrase:  Certain units of the Peoples Republican Army were entirely made up of Carabineros, such as the 65th, 85th, 87th, 152nd, 179th, 211th, 222nd and 228th mixed brigades. The 3rd the Tercera Brigada Mixta mentioned in the Si me quieres escribir song and 5th were among the most distinguished mixed brigades of the loyalist army and saw action in most of the main battles of the civil war, including the 