Natal 71 é o nome de um disco oferecido aos militares em guerra no Ultramar português nesse mesmo ano, e que serve de título a este documentário sobre a guerra colonial.

Natal 71 is the name of a record given to the soldiers of the portuguese colonies overseas for Christmas 1971. Niassa's Songbook is the title of an audiotape illegally recorded by soldiers during the war years, in Mozambique. They are memories from a country which was shut from the rest of the world, poor and ignorant, laid to sleep by a stale and primitive propaganda which tried to hide all the conflicts from us and kept us from thinking and recognising the repressive nature of the regime we lived in.