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Irregular warfare

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Irregular warfare (IW) is a complex form of violent struggle. It occurs between state actors, like nations, and non-state actors, like smaller groups. The main goal of this struggle is to gain legitimacy and influence over a population. Legitimacy means being recognized as the rightful authority to lead. This type of conflict is often a protracted struggle. This means it is a long-term fight that tests the resolve of a state and its partners.

This type of warfare relies on indirect and asymmetric approaches. Asymmetric warfare happens when the two sides have very different levels of power. Instead of large armies meeting on a field, one side might use different methods to erode an adversary's will. This can include controlling important institutions or infrastructure. The goal is to weaken the enemy's power and influence through various capabilities.

There are several distinct types of activities within irregular warfare. The United States Department of Defense identifies five core activities. These are counter-insurgency (COIN), counter-terrorism (CT), unconventional warfare (UW), foreign internal defense (FID), and stabilization operations (SO). Other activities include guerrilla warfare (GW) and civil-military operations (CMO). Some struggles also involve fighting transnational criminal activities, such as illegal arms or drug trafficking.

The history of these concepts goes back a long time. In 1896, Charles Edward Callwell wrote about "small wars" for the United Kingdom War Office. Later, Friedrich August Freiherr von der Heydte wrote about modern irregular warfare. His original German book used the term "Kleinkrieg," which translates to "small war." In the United States, major doctrine developments happened between 2004 and 2007. These changes followed the September 11 attacks.

History provides many examples of these struggles in action. The American Revolutionary War is often viewed through this lens. At the start, American forces were not a regular army. They did not have a fixed, recognizable emblem until the flag was established in 1777. There was also a great disparity in power between the Americans and the British. This disparity only began to narrow when France started to assist the Americans in 1778. Even the Boston Tea Party in 1773 can be seen as a form of guerrilla tactics.

Specific groups have been used in these conflicts throughout history. For example, paramilitary officers from the CIA's Special Activities Center (SAC) led irregular units. In the 1960s, they worked with the Hmong tribe during the war in Laos. In 2001, they worked with the Northern Alliance against the Taliban in Afghanistan. In 2003, they worked with the Kurdish Peshmerga in Iraq. These examples show how small, specialized groups can influence large-scale conflicts.

Irregular warfare is a massive part of global history. Experts suggest that since the time of Napoleon, approximately 80% of conflicts have been irregular in nature. This shows that it is a very common way for humans to struggle for power. Today, the military uses modeling and simulation to study these patterns. This helps them understand how different actions might affect a population or a political authority.

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