Cham Albanian collaboration with the Axis in the context of "Trial in absentia"

Cham Albanians or Chams (also spelled Çam Albanians or Çams; Albanian: Çamët; Greek: Τσάμηδες, romanized: Tsámides), are a subgroup of Albanians who originally resided in a region along the coast of the Ionian Sea in southwestern Albania and northwestern Greece, an area known among Albanians as Chameria. The Chams have their own particular cultural identity within Albanian subgroups. A number of Chams contributed to the Albanian national identity and played an important role in starting the renaissance of the Albanian culture in the 19th century. The Chams speak their own dialect of the Albanian language, the Cham Albanian dialect, which is a Southern Tosk Albanian dialect and one of the two most conservative ones; the other being Arvanitika.

During the late 1930s Chams suffered from intimidation and persecution under the dictatorship of General Metaxas. Following the Italian occupation of Albania in 1939, the Chams became a prominent propaganda tool for the Italians and irredentist elements among them became more vocal. As a result, on the eve of the Greco-Italian War, Greek authorities deported the adult male Cham population to internment camps. After the occupation of Greece, parts of the Muslim Cham population collaborated with Italian and German forces. This fueled resentment among the local Greek population and in the aftermath of World War II, the entire Muslim Cham population were forcefully expelled to Albania.

Albanians in Greece (Albanian: Shqiptarët në Greqi; Greek: Αλβανοί στην Ελλάδα, romanized: Alvanoí stin Elláda) are people of Albanian ethnicity or ancestry who live in or originate from areas within modern Greece. They are divided into distinct communities as a result of different waves of migration. Albanians first migrated into Greece during the late 13th century. The descendants of populations of Albanian origin who settled in Greece during the Middle Ages are the Arvanites, who have been fully assimilated into the Greek nation and self-identify as Greeks. Today, they still maintain their distinct subdialect of Tosk Albanian, known as Arvanitika, although it is endangered as the younger generations no longer speak it due to language attrition.

The Chams are an Albanian group from the coastal parts of Epirus, in northwestern Greece and the southernmost part of Albania. The Chams of Muslim faith were expelled from Epirus during World War II after large parts of their population collaborated with the Axis occupation forces. Greek Orthodox Albanian communities have been assimilated into the Greek nation.