Definition of "isolation"

As of 1975, diplomatic ostracism is still imposed by the Organization of American States (OAS). The inter-American community also exercises a trade embargo against Cuba. But even within this context of hemispheric isolation, Havana’s diplomacy is strikingly contradictory.

1975, W. Raymond Duncan, “Problems of Cuban Foreign Policy, chapter 20”, in Irving Louis Horowitz, editor, Cuban Communism‎, 5th edition, Transaction, published 1985, page 486

Israel could offer to ease North Korea’s isolation with diplomatic recognition, […] ¶ […] But Washington’s strategy of increasing North Korean isolation left no room for back-channel talks with Tel Aviv, […]

September 1993, Jon Brook Wolfsthal, “The Israeli initiative”, in The Bulletin of the Atomic Scientists‎, volume 49, number 7, page 8

It [Europe] now pressed Washington to begin direct talks with Tehran, but Undersecretary of State Nicholas Burns, Rice’s point man on Iran, still stressed that diplomatic isolation of Iran—and not diplomatic engagement—was the only acceptable approach for dealing with the Iranian nuclear challenge.

2009, Dore Gold, The Rise of Nuclear Iran: How Tehran Defies the West‎, Regnery Publishing, page 49