War on the Western Front / ed. Gary Sheffield new vanguard series British Mark IV tank / David Fletcher ; ill. by Tony Bryan combat British Infantryman versus German Infantryman : Somme 1916 / Stephen Bull weapon Browning .30-caliber machine guns / Gordon L. Rottman weapon Lewis gun / Neil Grant Letters from the front : from the first world war to the present day / Andrew Roberts history of the world in 100 weapons / Chris McNab osprey military men-at-arms series Lawrence and the Arab revolts : warfare and soldiers of the Middle East 1914-18 / text by David Nicolle ; colour plates by Richard Hook new vanguard series British Mark I tank 1916 / David Fletcher ; illustrated by Tony Bryan aircam aviation series Sharkmouth 1916-1945 / ill. and comp. by Richard Ward men-at-arms series British Army, 1914-18 / text by R.J. Marrion and D.S.V. Fosten ; colour pl. by G.A. Embleton osprey campaign series Gallipoli, 1915 : frontal assault on Turkey / Philip J. Haythornthwaite