Royal Naval Brigades - Royal Naval Division

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1^st Royal Naval Brigade

189^th Brigade

2/4 London Regiment

189^th Trench Mortar Bty.

189^th Machine-Gun Coy.

224^th / 189^th Machine-Gun Coy.

2^nd Royal Naval Brigade

188^th Brigade

2/2 London Regiment

188^th Trench Mortar Bty.

188^th Machine-Gun Coy.

223^rd / 188^th Machine-Gun Coy.

2^nd Royal Irish Rifles

3^rd Royal Naval Brigade

Battalion timeline colour denotes Brigade through that period.