Rough activity; fighting or brawling; a fight.
An environment of rough activity
A person who characteristically engages in such activity
Engage in rough-and-tumble activity
active, vigorous and rough, with the possibility of harm
highly competitive
The waging of war or armed conflict against an enemy.
Military operations of some particular kind e.g. guerrilla warfare.
To lead a military life; to carry on continual wars.