Guerrilla warfare in the context of "Communist Party of China"

The Peninsular War (1808–1814) was fought in the Iberian Peninsula by the Iberian nations Spain and Portugal, and the United Kingdom against the invading and occupying forces of the First French Empire during the Napoleonic Wars. In Spain, it is considered to overlap with the Spanish War of Independence. It overlapped with the War of the Fifth Coalition (1809) and the War of the Sixth Coalition (1812-1814).

The war can be said to have started when the French and Spanish armies invaded and occupied Portugal in 1807 by transiting through Spain, but it escalated in 1808 after Napoleonic France occupied Spain, which had been its ally. Napoleon Bonaparte forced the abdications of Ferdinand VII and his father Charles IV and then installed his brother Joseph Bonaparte on the Spanish throne and promulgated the Bayonne Constitution. Most Spaniards rejected French rule and fought a bloody war to oust them. The war on the peninsula lasted until the Sixth Coalition defeated Napoleon in 1814, and is regarded as one of the first wars of national liberation. It is also significant for the emergence of large-scale guerrilla warfare.

A secret society is an organization about which the activities, events, inner functioning, membership, and sometimes also existence, are concealed. The term usually excludes covert groups, such as intelligence agencies or guerrilla warfare insurgencies, that hide their activities and memberships but maintain a public presence.

Secret societies may be community-based or associated with colleges and universities. These societies exist in countries around the world.

In political science, a revolution (Latin: revolutio, 'a turn around') is a rapid, fundamental transformation of a society's class, state, ethnic or religious structures. According to sociologist Jack Goldstone, all revolutions contain "a common set of elements at their core: (a) efforts to change the political regime that draw on a competing vision (or visions) of a just order, (b) a notable degree of informal or formal mass mobilization, and (c) efforts to force change through noninstitutionalized actions such as mass demonstrations, protests, strikes, or violence."

Revolutions have occurred throughout human history and varied in their methods, durations and outcomes. Some revolutions started with peasant uprisings or guerrilla warfare on the periphery of a country; others started with urban insurrection aimed at seizing the country's capital city. Revolutions can be inspired by the rising popularity of certain political ideologies, moral principles, or models of governance such as nationalism, republicanism, egalitarianism, self-determination, human rights, democracy, liberalism, fascism, or socialism. A regime may become vulnerable to revolution due to a recent military defeat, or economic chaos, or an affront to national pride and identity, or persistent repression and corruption. Revolutions typically trigger counter-revolutions which seek to halt revolutionary momentum, or to reverse the course of an ongoing revolutionary transformation.

The war in Afghanistan was a prolonged armed conflict lasting from 2001 to 2021. It began with an invasion by a United States–led coalition under the name Operation Enduring Freedom in response to the September 11 attacks carried out by the Taliban-allied and Afghanistan-based al-Qaeda. The Taliban were expelled from major population centers by American-led forces supporting the anti-Taliban Northern Alliance, thus toppling the Taliban-ruled Islamic Emirate. Three years later, the American-sponsored Islamic Republic was established, but by then the Taliban, led by founder Mullah Omar, had reorganized and begun an insurgency against the Afghan government and coalition forces. The conflict ended almost twenty years later as the 2021 Taliban offensive reestablished the Islamic Emirate. It was the longest war in United States military history, surpassing the Vietnam War by six months.

Following the September 11 attacks, masterminded by al-Qaeda leader Osama bin Laden, American president George W. Bush demanded that the Taliban immediately extradite him to the United States and close down al-Qaeda's camps in Afghanistan; the Taliban refused and demanded evidence of bin Laden's guilt before offering to hand him over to a neutral country. The U.S. dismissed these offers and proceeded with the invasion. After expelling the Taliban and their allies, the American-led coalition remained in Afghanistan, forming the International Security Assistance Force (ISAF)—sanctioned by the United Nations—with the goal of creating a new democratic authority in the country that would prevent the Taliban from returning to power. A new Afghan Interim Administration was established, and international rebuilding efforts were launched. By 2003, the Taliban had reorganized and launched a widespread insurgency against the new Afghan government and coalition forces. Insurgents from the Taliban and other Islamist groups waged asymmetric warfare, fighting with guerrilla warfare in the countryside, suicide attacks

The vast majority of the territory of present-day Greece was at some point incorporated within the Ottoman Empire. The period of Ottoman rule in Greece, lasting from the mid-15th century until the successful Greek War of Independence broke out in 1821 and the First Hellenic Republic was proclaimed in 1822, is known in Greece as Turkocracy (Greek: Τουρκοκρατία, romanized: Tourkokratia, lit. 'Turkish rule'). Some regions, like the Ionian islands and various temporary Venetian possessions of the Stato da Mar, were not incorporated in the Ottoman Empire. The Mani Peninsula in the Peloponnese was not fully integrated into the Ottoman Empire, but was under Ottoman suzerainty.

The Eastern Roman Empire, which ruled most of the Greek-speaking world for over 1100 years, had been fatally weakened since the Fourth Crusade of 1204. Having defeated the Serbs, the Ottomans captured Constantinople in 1453 and soon advanced southwards capturing Athens in 1456 and the Peloponnese in 1460. By the early 16th century, all of mainland Greece and most of the Aegean Islands were in Ottoman hands, excluding several port cities that were still held by the Venetians (notably Nafplio, Monemvasia, Parga and Methone). The mountains of Greece remained largely untouched and were a refuge for Greeks who desired to flee Ottoman rule and engage in guerrilla warfare. The Cyclades islands were annexed by the Ottomans in 1579, although they had been under vassal status since the 1530s. Cyprus fell in 1571, and the Venetians retained Crete until 1669. The Ionian Islands were never ruled by the Ottomans, with the exception of Kefalonia (from 1479 to 1481 and from 1485 to 1500), but remained under the rule of the Venice. It was in the Ionian Islands that modern Greek statehood was born, with the creation of the Republic of the Seven Islands in 1800.

The French Resistance (French: La Résistance [la ʁezistɑ̃s]) was a collection of groups that fought the Nazi occupation and the collaborationist Vichy regime in France during the Second World War. Resistance cells were small groups of armed men and women (called the Maquis in rural areas) who conducted guerrilla warfare and published underground newspapers. They also provided first-hand intelligence information, and escape networks that helped Allied soldiers and airmen trapped behind Axis lines. The Resistance's men and women came from many parts of French society, including émigrés, academics, students, aristocrats, conservative Roman Catholics (including clergy), Protestants, Jews, Muslims, liberals, anarchists, communists, and some fascists. The proportion of the French people who participated in organized resistance has been estimated at from one to three percent of the total population.

The French Resistance played a significant role in facilitating the Allies' rapid advance through France following the invasion of Normandy on 6 June 1944. Members provided military intelligence on German defences known as the Atlantic Wall, and on Wehrmacht deployments and orders of battle for the Allies' invasion of Provence on 15 August. The Resistance also planned, coordinated, and executed sabotage acts on electrical power grids, transport facilities, and telecommunications networks. The Resistance's work was politically and morally important to France during and after the German occupation. The actions of the Resistance contrasted with the collaborationism of the Vichy régime.

The Algerian War, also known as the Algerian Revolution, or the Algerian War of Independence, was an armed conflict between France and the Algerian National Liberation Front (FLN) from 1954 to 1962, which led to Algeria winning its independence from France. An important decolonization war, it was a complex conflict characterized by guerrilla warfare and war crimes. The conflict also became a civil war between the different communities and within the communities. The war took place mainly on the territory of Algeria, with repercussions in metropolitan France.

Effectively started by members of the FLN on 1 November 1954, during the Toussaint Rouge ("Red All Saints' Day"), the conflict led to serious political crises in France, causing the fall of the Fourth Republic (1946–58), to be replaced by the Fifth Republic with a strengthened presidency. The brutality of the methods employed by the French forces failed to win hearts and minds in Algeria, alienated support in metropolitan France, and discredited French prestige abroad. As the war dragged on, the French public slowly turned against it and many of France's key allies, including the United States, switched from supporting France to abstaining in the UN debate on Algeria. After major demonstrations in Algiers and several other cities in favor of independence (1960) and a United Nations resolution recognizing the right to independence, Charles de Gaulle, the first president of the Fifth Republic, decided to open a series of negotiations with the FLN. These concluded with the signing of the Évian Accords in March 1962. A referendum took place on 8 April 1962 and the French electorate approved the Évian Accords. The final result was 91% in favor of the ratification of this agreement and on 1 July, the Accords were subject to a second referendum in Algeria, where 99.72% voted for independence and just 0.28% against.

The Colombian conflict (Spanish: Conflicto armado interno de Colombia, lit. 'Colombian internal armed conflict') began on May 27, 1964, and is a low-intensity asymmetric war between the government of Colombia, far-right paramilitary groups, crime syndicates and far-left guerrilla groups fighting each other to increase their influence in Colombian territory. Some of the most important international contributors to the Colombian conflict include multinational corporations, the United States, Cuba, and the drug trafficking industry.

The conflict is historically rooted in the conflict known as La Violencia, which was triggered by the 1948 assassination of liberal political leader Jorge Eliécer Gaitán and in the aftermath of the anti-communist repression in rural Colombia in the 1960s that led Liberal and Communist militants to re-organize into the Revolutionary Armed Forces of Colombia (FARC).