Allied forces begin their Somme offensive in Dompierre. Allies moving guns and supplies forward in France for the Battle of the Somme, during World War 1. A French 305mm railway gun moving on a railroad, with French soldiers riding on it and several box cars of munitions behind it. German troops, devoid of weapons and battle gear, some with their hands up, scurrying through scarred landscape, as they surrender. Artillerymen lower an entrenched French 240mm artillery gun to near zero elevation and fire it. French artillerymen work on a rail-mounted 520mm howitzer.
Montage of scenes related to European mobilization and preparations for World War I, from 1914 through 1919, plus brief views of Mark VIII tank maneuvers, circa 1924. Patriotic French citizens fill a street as France mobilizes for World War 1. Italian soldiers marching to war through a town. British King George V seen with Prime Minister David Lloyd George and other British officials. British First Lord of Admiralty, Winston Churchill poses and "mugs" for camera. British troops being transported along a country road on double-decker buses and slogging through the mud in France. Two French soldiers join the line of "tommies" to be photographed, and then step out of line to watch. King George V with Field Marshal Douglas Haig, and other officers, next to their automobiles in field, during the King's visit to his troops in 1916. The King and British officers observe tests of Mark IV tank, circa 1917. Scene shifts to August 10, 1916 showing the Prince of Wales and King George V, accompanied by Field Marshal Douglas Haig, and other officers, observing the Battle of Pozières (in Battle of the Somme) from a safe distance, using a telescope. U.S. Army Mark VIII International Tanks in daytime and nighttime maneuvers (likely at Fort Meade, Maryland) circa 1924.
Victorious Allied troops walk behind a British Mark I tank (male) on a dirt road in France, after the battle of the Ancre at end of the 1916 Battle of the Somme, in World War 1. The troops appear relieved at the pause in hostilities and many cheer. Later, a large group of Allied troops relaxes and enjoys a meal of field rations, in a captured German position. A bonfire helps them keep warm. (Note: From British Government documentary "Battle of the Ancre and Advance of the tanks" shot during the 1916 Battle of the Ancre.)
Scene from feature film about World War 1, circa 1916, in France. British tank crosses a battlefield under fire. It is an MkV Supply Tank with dummy guns fitted to simulate a fighting tank. British troops sheltering in a shell-hole recognize it as friendly and follow it towards enemy lines, where it rides over the parapet of a German trench and crushes a machine-gun position.
Preparing for the Battle of the Ancre, during World War 1, Allied troops are seen with supply train of horse-drawn wagons carrying hay, flour, and other essentials to sustain troops. Soldiers unloading supplies from railroad box cars. Army butchers cutting large sides of beef. Army officers inspecting supply activities. Allied infantry moving forward with supply wagons. Infantry marching in good order, three abreast toward the battle fields. The Royal Welsh Fusiliers and Australians on their way to the trenches. Highlanders and Royal engineers bringing wooden grids to the muddy trenches. Allied troops roll artillery shells to their guns.German artillery shells the Allied light rail supply link.
Reenactment of scenes from 1916 in World War 1, probably filmed circa 1927 in Southwest England. Two British Mk V Tanks advance through shellfire. One has its gun mountings plated over and has dummy guns; the other has its gun mounts intact, though the guns might be dummies, and carries anti-grenade mesh on its roof. (This is error by movie makers, since this type of anti-grenade protection was not carried on Mk V tanks) The tank advances towards enemy trenches, followed by British soldiers who pursue German soldiers fleeing along the network of trenches. The tank, filmed from below, in the trench, as it moves over the trench.