Difference between War and Warfare

I'm reading The Little Prince and there is a phrase:

"Is this warfare between the sheep and the flowers not important?"

Is it correct to exchange warfare for war? When to use war instead of warfare? Is there a difference?

WAR

armed fighting between two or more countries or groups, or a particular example of this:

-Cambridge online

Warfare

the activity of fighting a war, often including the weapons and methods that are used:

-Cambridge online

War describes a state of political affairs between 2 or more regions/countries engaging in armed conflict.

Warfare would include the strategy and tactics of the opposing forces.