Conflicts

Wars, battles, and military operations

162
Total Conflicts
51
Civil Wars
49
Interstate Wars
22
Insurgencies
51 records
1971/Civil War/Regional War

The Bangladesh Liberation War of 1971 was the conflict that transformed East Pakistan into the independent state of Bangladesh. It began after political deadlock over the disputed 1970 Pakistani election and the Pakistan Army's Operation Searchlight, launched to suppress the Bengali independence movement, and developed into a liberation struggle involving Bengali nationalist forces, mass displacement, atrocities, Indian support, and a short India-Pakistan interstate war. The Mukti Bahini, or Liberation Army, conducted guerrilla warfare against Pakistani forces with Indian backing, in campaigns that included the siege of Jessore, the Battle of Hilli, and fighting in Chittagong and Sylhet. The war featured widespread atrocities including mass killings, rape, and forced displacement. India provided training and weapons before intervening directly in December 1971, and the conflict escalated into the larger Indo-Pakistani war when Pakistan preemptively attacked India. The United States supported Pakistan while the Soviet Union backed India. Approximately 300,000 to 3 million people died, and 10 million refugees fled to India. The Pakistani surrender on December 16, 1971 secured Bangladesh's independence and Pakistan's fragmentation. The war combined civil war, secession, genocide and atrocity allegations, refugee crisis, Cold War diplomacy, and decisive external intervention; it reshaped South Asia's state system and remains central to Bangladeshi national identity.

500,000
fatalities
1970 – 1975/Civil War/Regional War

The Cambodian Civil War (1970-1975) was fought between the Khmer Republic led by Lon Nol, backed by the United States and South Vietnam, and communist insurgent forces centered on the Khmer Rouge, with North Vietnamese support and sanctuary politics tying the conflict directly to the wider Indochina war. It began after the overthrow of Prince Norodom Sihanouk and intensified as American and South Vietnamese operations, aerial bombardment, and regional war expansion destabilized Cambodia's already fragile political order. The conflict mattered not only because it devastated civilian life and the countryside, but because it allowed the Khmer Rouge to grow from a marginal insurgent force into the movement that captured Phnom Penh in April 1975 and opened the way to Democratic Kampuchea and genocide. Cambodia is a key case of how regime change, cross-border war, bombardment, and state collapse can combine into a catastrophic revolutionary victory.

300,000
fatalities
1967 – 1970/Civil War/Regional War

The Nigerian Civil War of 1967 to 1970, also known as the Biafran War, was fought between Nigeria's federal government and the secessionist Republic of Biafra in the country's southeast. It was driven by postcolonial state crisis, ethnic violence, military coups, oil geography, security fears, and the failed attempt by Nigeria's eastern region to secede. The war began when Biafra, predominantly inhabited by the Igbo people, declared independence under Colonel Ojukwu following ethnic tensions and massacres of Igbos in northern Nigeria. The federal government, led by General Gowon, refused to recognize the secession and launched military operations to reunify the country. The fighting combined conventional warfare, siege tactics, and blockade, with Britain and the Soviet Union supporting Nigeria while France and some African states recognized Biafra. The blockade produced a humanitarian catastrophe of widespread starvation in besieged Biafra that drew heavy international media coverage. Approximately 1 to 3 million people died, mostly civilians from famine and disease. Biafra surrendered in January 1970, leading to postwar reconciliation policies and the politics of national unity, though underlying ethnic tensions persisted and the memory of the war endured.

1,000,000
fatalities
1965 – 1979/Civil War/Regional War

The Chadian Civil War erupted in 1965 as rebellion against President Francois Tombalbaye and evolved into a multi-faction struggle shaped by regional inequality, state weakness, foreign intervention, and repeated changes in leadership, becoming one of the defining Sahelian conflicts of the postcolonial era. The conflict illustrates the links between fragile independence, desert insurgency, factional politics, Libyan and French involvement, and the difficulty of building a state across deeply divided regional and social landscapes. It demonstrates how regional grievance, weak administrative reach, and elite fragmentation can turn a postcolonial state into a long-running arena of armed competition rather than a single front with stable sides, making it an important case of state fragility, foreign intervention, and insurgent politics evolving into repeated struggles over national authority.

7,000
fatalities
1964 – 1979/Civil War/Regional War

The Rhodesian Bush War, also known as the Zimbabwe War of Liberation, was the conflict fought from 1964 to 1979 between Rhodesia's white minority government and African nationalist movements seeking majority rule. It was both a counterinsurgency campaign and a political struggle over sovereignty, race, land, and international legitimacy. The war escalated after Rhodesia's Unilateral Declaration of Independence in 1965 and the international sanctions that followed. The main combatants were the Rhodesian Security Forces and two liberation movements: ZANU, the Zimbabwe African National Union, with its ZANLA military wing, and ZAPU, the Zimbabwe African People's Union, with its ZIPRA forces. Fighting was asymmetric, combining guerrilla tactics, cross-border raids from Zambia and Mozambique, and government counterinsurgency operations, and it intensified after Mozambique's independence in 1975 gave the guerrillas new bases. Major operations included government offensive sweeps and guerrilla attacks on white farms, infrastructure, and civilian targets. Approximately 20,000 to 30,000 people died, combatants and civilians from all communities. The war ended with the Lancaster House Agreement in 1979, which tied decolonization, unilateral independence, sanctions, regional sanctuaries, and Cold War alignments into a negotiated settlement and led to majority rule and Zimbabwe's independence in 1980.

30,000
fatalities
1960 – 1996/Civil War/Regional War

The Guatemalan Civil War was a long internal armed conflict from 1960 to 1996 between Guatemalan state forces and leftist insurgent organizations, and the longest civil conflict in Latin America. It began when left-wing military officers attempted a coup against the right-wing government and then formed guerrilla organizations such as the FAR and EGP, and it was rooted in military rule, Cold War politics, land inequality and social inequality, and indigenous exclusion. Government forces, backed and trained by the United States under Cold War anti-communist policies, employed brutal counterinsurgency including scorched-earth campaigns against indigenous villages, with major operations in the highlands and in urban areas. The most violent period, from 1978 to 1984, saw systematic persecution of Maya populations that historical truth commissions have judged to constitute genocide. Approximately 200,000 people were killed or disappeared, 83 percent of them indigenous Maya civilians. The conflict ended with the 1996 peace accords, but its human-rights legacy, alongside continuing impunity and social inequality, remains central to Guatemala's modern politics.

200,000
fatalities
1955 – 1972/Civil War/Regional War

The First Sudanese Civil War, fought from 1955 to 1972, was the first major postcolonial north-south war in Sudan, pitting a northern government dominated by Arabs and Muslims against southern rebels who were predominantly Christian and animist. It began before independence from Britain and Egypt, sparked by southern fears of Arab domination and Islamic rule, and the southern rebellion was led initially by the Anyanya guerrilla movement under figures such as Joseph Lagu. Ethnic, religious, and cultural division defined the fighting, with the north seeking to impose Arabic language and Islamic law. Major battles occurred in the Equatoria, Bahr el Ghazal, and Upper Nile provinces, disrupting development and causing mass displacement and famine; approximately 500,000 people died from warfare, disease, and starvation. The war ended with the Addis Ababa Agreement of 1972, which granted southern Sudan regional autonomy, though the peace proved temporary. It exposed the gap between Khartoum-centered state power and southern demands for autonomy, representation, security, and protection from cultural and political domination, and it became the foundation of Sudan's modern conflict system, linking military rule, identity politics, state centralization, and the later causes of Sudan's second civil war.

500,000
fatalities
1936 – 1939/Civil War/Regional War

The Spanish Civil War was fought from 1936 to 1939 between the democratically elected Second Spanish Republic and a military uprising led by General Francisco Franco, whose coup against the Popular Front government quickly divided Spain into Nationalist and Republican zones. It combined ideological polarization, military rebellion, social revolution, foreign intervention, airpower, repression, and mass civilian suffering. International involvement turned it into a proxy war: Nazi Germany and Fascist Italy supported Franco with weapons, troops, and air power, while the Soviet Union aided the Republic with weapons and advisors and International Brigades of foreign volunteers fought on the Republican side. The conflict featured the first major use of aerial bombing against civilians, notably at Guernica, and major battles including the siege of Madrid, the Battle of the Ebro, and the Catalonia campaign. Approximately 500,000 people died from combat, executions, and repression. Franco's victory established a fascist dictatorship that lasted until 1975.

500,000
fatalities
1927 – 1949/Civil War/Regional War

The Chinese Civil War was a prolonged struggle, running from 1927 to 1949, between the Kuomintang-led Nationalist government under Chiang Kai-shek and the Chinese Communist Party under Mao Zedong for political control of China. It opened with the Shanghai Massacre and alternated between active warfare and uneasy truces, passing through the Long March of 1934-1935 and the Second United Front against Japan, as the Second Sino-Japanese War interrupted and reshaped its course. Fighting resumed after Japan's defeat, and the final phase from 1945 to 1949 was decided by the Liaoshen, Huaihai, and Pingjin campaigns. The war devastated China, with millions of military and civilian casualties. Communist victory in 1949 established the People's Republic of China on the mainland while the Nationalists retreated to Taiwan, preserving the Republic of China there and leaving an unresolved sovereignty problem that still shapes East Asian security. It was at once a civil war, a revolutionary war, and a Cold War precursor.

8,000,000
fatalities
1917 – 1922/Civil War/Regional War

The Russian Civil War of 1917-1922 was the multi-sided conflict that followed the Bolshevik Revolution and Russia's withdrawal from the First World War, and that decided whether the Bolshevik government would survive. Red Army forces, organized by Leon Trotsky, defended and expanded Bolshevik control against White armies under generals such as Denikin, Kolchak, and Wrangel, as well as against anarchists, nationalist movements, foreign interventionist forces, peasant resistance, and rival socialist forces. Major campaigns ranged across the vast former empire, from the west to Siberia, and the fighting featured brutal tactics, mass executions, and widespread civilian suffering; estimates suggest 5 to 9 million deaths from combat, disease, and famine. Bolshevik victory established the Soviet Union and eliminated organized political opposition across most former Russian territories. The war created the military and coercive foundations of the Soviet state, transforming revolution into state power, militarizing politics, devastating society, and leaving a legacy of centralized party rule, security policing, and ideological civil war.

10,000,000
fatalities
1861 – 1865/Civil War/Regional War

The American Civil War was fought from 1861 to 1865 between the United States and the eleven Southern states that seceded after Abraham Lincoln's election to form the Confederate States of America. Its central cause was slavery and the political crisis over its expansion, sovereignty, and future in the United States, argued at the time alongside claims of states' rights. The conflict involved mass mobilization and industrial warfare across the Eastern Theater (Bull Run, Antietam, Gettysburg, the Wilderness), the Western Theater (Shiloh, Vicksburg, Chattanooga), and Sherman's March to the Sea, and saw the first widespread use of rifled muskets, ironclad warships, trench warfare, and telegraph communications alongside railroads and naval blockade. Union victory preserved the nation, destroyed the Confederacy militarily and politically, and led to the abolition of slavery through the 13th Amendment, reaching into civilian society and constitutional change. Approximately 620,000 to 750,000 soldiers died, making it the deadliest conflict in American history.

620,000
fatalities