A rivalry, feud, or conflict between groups or parties; often used for intense disputes or struggles (can be used as 'to contest/struggle').
二つの派閥の間で抗争が続いている。
A feud between the two factions continues.
労働組合と会社が賃金を巡って抗争した。
The union and the company clashed over wages.
商店街の店舗同士で客取りの抗争が激しい。
Stores in the shopping street fiercely compete for customers.