"There is no article:
- With uncountable nouns:
Rice is the main food in Asia.
Milk is often added to tea in England.
War is destructive.
War is uncountable?
What about "Star Wars", etc.?
EXCEPTIONS TO USING THE DEFINITE ARTICLE
English Grammar: EXCEPTIONS TO USING THE DEFINITE ARTICLE
It can be both. The abstract idea of war, like peace, love, hope, etc. is uncountable, but actual conflicts are countable.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.