walczący ze sobą in English:

The Tory Party has disintegrated into warring factions.

The two warring factions have not reached a compromise.

The businessmen were earning large profits by transporting and supplying the warring armies.

Relations are tenuous as peace talks resume between warring factions.

A neutral country is a country that doesn't sell weapons to a warring country, unless you pay cash.

In China too glass is being excavated out of graves from the Era of Warring States.