Please proofread the following statements.
1. War brings a lot of disasters to humans.
2. Wars have brought a lot of disasters to humans.
But 'war' is singular in the first sentence. Should we write like this 'The war' or 'A war'.?
"Peace is better than war." (Peace doesn't have a plural; War does)
Here, we are talking about peace in general, and war in general.
You can say "A war" or "The war" if you are referring to a specific war.
"War is hell" This doesn't refer to any particular war.There are a lot of nouns in English that don't require an article.
But words which are abstract should not have plural form. Peace is an uncountable noun, so it should not take plural form. But war is a countable noun, so it should be 'wars' instead of 'war' if you want to refer to wars in general.