Interventionism (politics)

Interventionism, in international politics, is the interference of a state or group of states into the domestic affairs of another state for the purposes of coercing that state to do something or refrain from doing something.^[1] The intervention can be conducted through military force or economic coercion. A different term, economic interventionism, refers to government interventions into markets at home.^[2]

Military intervention, which is a common element of interventionism, has been defined by Martha Finnemore in the context of international relations as "the deployment of military personnel across recognized boundaries for the purpose of determining the political authority structure in the target state". Interventions may be solely focused on altering political authority structures, or may be conducted for humanitarian purposes, or for debt collection.^[3]

Interventionism has played a major role in the foreign policies of Western powers, particularly during and after the Victorian era. The New Imperialism era saw numerous interventions by Western nations in the Global South, including the Banana Wars. Modern interventionism grew out of Cold War policies, where the United States and the Soviet Union intervened in nations around the world to counter any influence held there by the other nation.^[4] Historians have noted that interventionism has always been a contentious political issue in the public opinion of countries which engaged in interventions.^[5]

According to a dataset by Alexander Downes, 120 leaders were removed through foreign-imposed regime change between 1816 and 2011.^[6] A 2016 study by Carnegie Mellon University political scientist Dov Haim Levin (who now teaches at the University of Hong Kong) found that the United States intervened in 81 foreign elections between 1946 and 2000, with the majority of those being through covert, rather than overt, actions.^[7][8] Multilateral interventions that include territorial governance by foreign institutions also include cases like East Timor and Kosovo, and have been proposed (but were rejected) for the Palestinian territories.^[9] A 2021 review of the existing literature found that foreign interventions since World War II tend overwhelmingly to fail to achieve their purported objectives.^[10]

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Studies by Alexander Downes, Lindsey O'Rourke, and Jonathan Monten indicate that foreign-imposed regime change seldom reduces the likelihood of civil war, violent removal of the newly imposed leader,^[6] and the probability of conflict between the intervening state and its adversaries,^[11] and does not increase the likelihood of democratization unless regime change comes with pro-democratic institutional changes in countries with favorable conditions for democracy.^[12] Downes argues:^[6]

The strategic impulse to forcibly oust antagonistic or non-compliant regimes overlooks two key facts. First, the act of overthrowing a foreign government sometimes causes its military to disintegrate, sending thousands of armed men into the countryside where they often wage an insurgency against the intervener. Second, externally-imposed leaders face a domestic audience in addition to an external one, and the two typically want different things. These divergent preferences place imposed leaders in a quandary: taking actions that please one invariably alienates the other. Regime change thus drives a wedge between external patrons and their domestic protégés or between protégés and their people.

Research by Nigel Lo, Barry Hashimoto, and Dan Reiter has contrasting findings, as they find that interstate "peace following wars last longer when the war ends in foreign-imposed regime change".^[13] However, research by Reiter and Goran Peic finds that foreign-imposed regime change can raise the probability of civil war.^[14]

Among African nations, Nigeria has shown the will to intervene in the affairs of other sub Saharan African countries since independence. It is said that one of the reasons Yakubu Gowon was removed from office had been the squandering of Nigeria's resources in such far-away lands as Grenada and Guyana, with no returns, economic or political for Nigeria. The philosophy of subsequent military governments in Nigeria was that in an increasingly interdependent world, a country cannot be an island.^[15]

• Kupchan, Charles A. Isolationism: A History of America's Efforts to Shield Itself from the World (Oxford University Press, 2020).
• Lee, Melissa M. 2020. Crippling Leviathan: How Foreign Subversion Weakens the State. Princeton University Press.

• Interventionism (Internet Encyclopedia of Philosophy)
• Empirical Knowledge on Foreign Military Intervention (Oxford Encyclopedia of Empirical International Relations Theory)