Two military vehicles first introduce in World War I were the armored tank and self-propelled artillery. Both greatly increased the number of people killed during the war and provided significant advantages to the countries who used them.
Tanks And Zeppelins
Tanks and submarines were the two military vehicles that (to the best of my knowledge) were introduced during World War 1.
Yes it was
Bart H. Vanderveen has written: 'Kaleidoscope of Bedford and Vauxhall military vehicles' -- subject(s): Bedford trucks, History, Military Vehicles, Vauxhall automobile 'A Source book for military support vehicles' 'World directory of modern military vehicles' -- subject(s): Military Vehicles 'The observer's fighting vehicles directory, World War II' -- subject(s): Military Vehicles
The world's first escalator was introduced on Coney Island
An amphtrack is a class of amphibious vehicles introduced in World War II.
tanks & airplanes
tank
yes
There are literally hundreds of thousands of military vehicles. -I have over 60 books just illustrating military vehicles since WW2 and the variety is mind boggling. All major truck manufacturers in almost every country in the world made a selection of military trucks. In the Canadian Army our best tank transports are made by Mercedes Benz, - In the USA, many of your best light armoured vehicles were built by Cadillac. Everyone is in on the act producing military vehicles
US military vehicles of World War II had a white star because that was the national symbol. We still put stars on our vehicles, but now they're black.
The first tanks were introduced on to the battlefield by the British in the First World War.