[5] "Isolationism" should be interpreted as a broader foreign policy that, in addition to non-interventionism, is associated with trade and economic protectionism, cultural and religious isolation, as well as non-participation in any permanent military alliance.
After the Chinese economic reform, China began to focus on industrial development and actively avoided military conflict over the subsequent decades.
[14] According to David L. Bosco, China turned abstention into an "art form," abstaining on 30% of Security Council Resolutions between 1971 and 1976.
This strategy has kept Switzerland from joining conflicts that threaten its sovereignty as well as allow its diverse citizenry to form a sense of national unity.
[16] After the terrorist attacks on September 11th, 2001, the United States changed its foreign policy to support the idea that "norms of sovereignty" are not respected when there are threats of terrorism or weapons of mass destruction.
[19] On February 24, 2022, Russia invaded Ukraine and began to mobilize machinery, shelling operations, and continuous airstrikes in cities like Kyiv, Kharkiv, and Lviv.
[20] Following the intervention, the United Nations Security Council attempted to invoke a resolution in order to address the Ukrainian issue.
[4] Moreover, the International Criminal Court closely monitors states who are unable or unwilling to protect their citizens and investigate if they have committed egregious crimes.
Michael Walzer's Just and Unjust Wars, which identifies three instances for when intervention is justifiable: "1) a particular community seeks secession or "natural liberation" within a set of boundaries; 2) counter-intervention is necessary to protect boundaries that already have been crossed; or 3) a terrible "violation of human rights," such as "cases of enslavement of massacre" has occurred.