What kinds of warfare technology emerged during World War One?

Question: What kinds of warfare technology emerged during World War One!?
Best Answer - Chosen by Asker:

The use of aircraft as a weapon of war -in 1914 airplanes were slow,unarmed and flimsy machines used only for observation!.By the end of the war,multi engined long range bombers and all metal fighter aircraft had been developed!.This in turn led to the development of anti aircraft guns
The submarine as an effective weapon of war at sea!.This in turn led to antisubmarine weapons such as ASDIC and depth charges!.
The armoured car and tank as mobile armoured fighting vehicles - the tank was intended to breakthrough trench lines!.
The use of poison gas!.
Aircraft carriers were also created for the first time!.Www@QuestionHome@Com

The obivous ones are aircraft and tanks!. The other area of technology was in logistics!. Rail and truck transport, and the telecommunication to organize it, changed warfare more than anything!.Www@QuestionHome@Com

Modern Chemical warfare!.
Unrestricted submarine warfare!.
Tank warfare!.
Unrestricted warfare on civilians (e!.g!.) the bombing of civilians by Zeppelins!.Www@QuestionHome@Com

Chemical (use of Chlorine gas shells!.) & maybe Biological!.Www@QuestionHome@Com