"One hundred years ago a new weapon system was born".
So opens the Tank Museum's book by Robin Cross and David Willey, and forwarded by Dan Snow.
The book explains how the Somme in 1916 saw the debut of the 'Land Ship', that would then go into battle far more spectacularly at Cambrai a year later.
From there, the machine continued to shape and define warfare.
"(Armoured) vehicles have played a leading part on battlefields from northern France in 1940 to the Korean peninsula.
"Tanks spearheaded the brilliant German thrust through the Ardennes, they drove Rommel from North Africa, clashed at Kursk, swam ashore at D-day, slowly edged towards Berlin from East and West, fought each other to a standstill on the Golan Heights and the Sinai Desert, crushed dissent in Prague and Budapest, swept away the South Vietnamese regime and toppled Saddam Hussein."
The first tanks were, of course, British.
The Mark I tank took to the battlefield at the Somme in 1916.
That was followed by the Mark IV, which was active throughout 1917 but made its mark at Cambrai on November 20th.
British tanks came in two varieties: male and female.
That wasn't because the British were planning to breed them to make more, but because they needed a way to differentiate between those that carried machine guns (females) and those that carried artillery guns (males) as their main armaments.
Here a Mark IV Male tank gun port (or Sponson) is shown.
It has a shortened 6-pounder artillery gun - the longer ones had been prone to getting caught on obstacles - and a Lewis gun in a ball mounting as a backup armament.
As scary as it must have been for Germans to face down British tanks, this 1937 book indicates that, in retrospect, they made for exciting fiction.
Die Flutcht im Tank, or 'The Escape in the Tank' looks to be an exciting read!
This more serious book on tanks was authored by the German tank commander Generalmajor Guderian, who would play a pivotal role in the Battle of France in 1940, and in driving the British to evacuate from Dunkirk.
The caption in Cross and Willey's book informs us:
"Prior to the Second World War, Guderion battled with traditionalists in the Germany Army who saw the tank only as a support weapon for the infantry. Here his publication is titled 'The panzer troops and their cooperation with other arms'."
Guderian would certainly prove to be right about the tank's importance in battle.
Shown below are the Panzers that were so devastating to the French and their British allies in 1940.
Here, they have just crossed over the Somme as they continue their advance.
The tank soon became an important symbol in politics and propaganda.
Just below is a Nazi rally in Saxony, and below that, tanks massed on Red Square in Moscow in 1940.
The British, of course, would eventually make better use of their tanks during the Second World War.
They fought Rommel, the 'Desert Fox', in North Africa (the next image).
Below that, a Churchill tank is shown speeding into action.
Willey and Cross' book also features tanks in more recent decades.
Some examples are this M48 tank, being operated by the Isreali Defence Forces (IDF), and below that a CV 90 Swedish made medium tank.
Cover image: A replica of a World War 1 German A7V (image: Carlton Books)
To pick up a copy of 'Tanks: 100 Years of Armoured Warfare' by Robin Cross and David Willey, visit Carlton Books. Use the code promo code TANKS to get a £15 DISCOUNT.