when did the british first use gas in ww1
25 September 1915
-1
Section::::History of poison gas in World War I.:1915: Large-scale use and lethal gases.:British gas attacks.

Chemical weapons in World War I
167578
16148484162444706416
NONE
Section::::History of poison gas in World War I.:1915: Large-scale use and lethal gases.:British gas attacks.

Chemical weapons in World War I
167578