Chemical weapons are a reality.
organic compounds can be classified easily as open chain and closed chain to the core. BUT ORGANIC CHEMISTRY, it is very vast and there are separate branches like medicinal chemistry, drug chemistry, warfare chemistry, food chemistry, biochemistry and tons etc.
in chemistry
chemistry
Mechanized warfare
The nuclear bomb was not used in trench warfare.
Psychology.
Yes, it was used in medieval warfare along with caltraps and stakes.
Metals are used in chemistry for coating of some metalloids and nonmetals
Trench Warfare
Western Front
The word "chemistry" should be capitalized only when it is at the beginning of a sentence or part of a title.
they used trench warfare and used powerful machineguns