Complex sentence: Taking the town of Mallow as its headquarters, it would be assumed to be raised in County Cork, part of the province of Munster, the recruiting ground of the real-life Royal Munster Fusiliers.
Split into simpler sentences: Taking the town of Mallow as its headquarters, it would be assumed to be raised in County Cork, part of the province of Munster. This was the recruiting ground of the real-life Royal Munster Fusiliers.