unilateralism, n.All

Unilateralism (n.) sits ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠in every president's back pocket; the mistake is only in smashing people in the face with it.

Unilateralism (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠the Mafia Don's method: act with others if they'll come along, otherwise act alone, because the rules do not bind you.