Brinkmanship is the practice of taking a dispute to the edge of conflict and

"Brinkmanship" is the practice of taking a dispute to the edge of conflict and forcing the opposition to back down. Brinkmanship was a strategic idea because it involved bluffing an enemy into thinking it would be attacked with the aim of escalating the conflict so that the enemy could back down.

a is true because it know the force.

ps maybe give us more info?

#mabyeustupid #fatboy

answer; i believe the two groups were irish immigrants and chinese immigrants;