Is "war" uncountable noun?

[vgv8]

[1] tells:
"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.?

[1]
EXCEPTIONS TO USING THE DEFINITE ARTICLE
English Grammar: EXCEPTIONS TO USING THE DEFINITE ARTICLE

 

[Barb_D]

It can be both. The abstract idea of war, like peace, love, hope, etc. is uncountable, but actual conflicts are countable.