battle

an energetic attempt to achieve something

“he fought a battle for recognition”

an open clash between two opposing groups (or individuals)

“police tried to control the battle between the pro- and anti-abortion mobs”

a hostile meeting of opposing military forces in the course of a war

“Grant won a decisive victory in the battle of Chickamauga”

battle or contend against in or as if in a battle

“they battled over the budget”