1) Exclusively Saxon word 2) Exclusively Anglo word 3) Foreign policy 4) Sometime foreign policy 5) Word of purely Anglo origin 6) Word with Anglo-Saxon origins 
Brinkmanship (also brinksmanship) is the practice of pushing dangerous events to the brink of disaster in order to achieve the most advantageous outcome. It occurs in international politics, foreign policy, labour relations, and (in contemporary settings) military strategy involving the threatened use of nuclear weapons, and high stakes litigation...
[n] - the policy of pushing a dangerous situation to the brink of disaster (to the limits of safety)
noun the policy of pushing a dangerous situation to the brink of disaster (to the limits of safety)
the technique or practice of maneuvering a dangerous situation to the limits of tolerance or safety in order to secure the greatest advantage, esp. by creating diplomatic crises.
Purposely escalating a dangerous situation to the limit ( brink), while giving the impression that you are willing to go to war, in the hope of pressuring your opponents to back down.