Royal Italian Army during World War II in the context of "Greco-Italian War"

Operation Achse (German: Fall Achse, lit. 'Case Axis'), originally called Operation Alaric (Unternehmen Alarich), was the codename for the German operation to forcibly disarm the Italian armed forces after Italy's armistice with the Allies on 3 September 1943.

Several German divisions had entered Italy after the fall of Benito Mussolini in July 1943, while Italy was officially still an ally of Germany, despite the protests of the new Italian government under Pietro Badoglio. The armistice was made public on 8 September. German forces moved rapidly to take over the Italian zones of occupation in the Balkans and southern France, and to disarm Italian forces in Italy.

The Capture of Klisura Pass (Greek: Κατάληψη της Κλεισούρας) was a military operation that took place during 6–11 January 1941 in southern Albania, and was one of the most important battles of the Greco-Italian War. The Italian Army, initially deployed on the Greek-Albanian border, launched a major offensive against Greece on 28 October 1940. After a two-week conflict, Greece managed to repel the invading Italians in the battles of Pindus and Elaia–Kalamas. Beginning on 9 November, the Greek forces launched a major counteroffensive and penetrated deep into Italian-held Albanian territory. The Greek operations culminated with the capture of the strategically important Klisura Pass in January 1941.

A death squad is an armed group whose primary activity is carrying out extrajudicial killings, massacres, or enforced disappearances as part of political repression, genocide, ethnic cleansing, or revolutionary terror. Except in rare cases in which they are formed by an insurgency, domestic or foreign governments actively participate in, support, or ignore the death squad's activities.

Death squads are distinguished from assassination groups by their permanent organization and the larger number of victims (typically thousands or more) who may not be prominent individuals. Other violence, such as rape, torture, arson, or bombings may be carried out alongside murders. They may comprise a secret police force, paramilitary militia groups, government soldiers, policemen, or combinations thereof. They may also be organized as vigilantes, bounty hunters, mercenaries, or contract killers. When death squads are not controlled by the state, they may consist of insurgent forces or organized crime, such as the ones used by cartels.

The Indian Army during World War II, a British force also referred to as the British Indian Army, began the war in 1939, numbering just under 200,000 men. By the end of the war, it had become the largest volunteer army in history, rising to over 2.5 million men in August 1945. Serving in divisions of infantry, armor and a fledgling airborne force, they fought in Africa, Europe and Asia.

The army fought in Ethiopia against the Italian Army, in Egypt, Libya, Tunisia and Algeria against both the Italian and German armies, and, after the Italian surrender, against the German Army in Italy. However, the bulk of the Indian Army was committed to fighting the Japanese Army, first during the British defeat in Malaya and the retreat from Burma to the Indian border; later, after resting and refitting for the victorious advance back into Burma, as part of the largest British Empire army ever formed. These campaigns cost the lives of over 87,000 Indian servicemen, while 34,354 were wounded, and 67,340 became prisoners of war. Their valour was recognised with the award of some 4,000 decorations, and 18 members of the Indian Army were awarded the Victoria Cross or the George Cross. Field Marshal Claude Auchinleck, Commander-in-Chief of the Indian Army from 1942, asserted that the British "couldn't have come through both wars (World War I and II) if they hadn't had the Indian Army." British Prime Minister Winston Churchill also paid tribute to "The unsurpassed bravery of Indian soldiers and officers."

The Tunisian campaign (also known as the Battle of Tunisia) was a series of battles that took place in Tunisia during the North African campaign of the Second World War, between Axis and Allied forces from 17 November 1942 to 13 May 1943. The Allies consisted of British Imperial Forces, including a Greek contingent, with American and French corps. Despite initial successes by the German and Italian forces brought from the mainland and which had withdrawn into and occupied Tunisia after their defeat in the Western Desert and the success of Operation Torch, massive supply interdiction efforts and Allied assaults from east and west led to the decisive defeat of the Axis. Over 260,000 German and Italian troops were taken as prisoners of war, including most of the Afrika Korps.