Pushback Operations

Pushback operations refer to measures by which state authorities — typically border guards, coast guards, or police — physically prevent migrants from entering territory or summarily expel those who have already crossed, without registering them, examining their asylum claims, or issuing individual removal decisions. Pushbacks can occur at land borders (e.g., forced returns across a river or fence) or at sea (e.g., intercepting and towing vessels back into another state's waters or to a third country).

Pushbacks are widely considered to violate several overlapping legal obligations. The principle of non-refoulement, codified in Article 33 of the 1951 Refugee Convention and reflected in Article 3 of the UN Convention Against Torture, prohibits returning a person to a territory where they face persecution or serious harm. The European Convention on Human Rights prohibits collective expulsion of aliens under Article 4 of Protocol No. 4, and the EU Charter of Fundamental Rights echoes this in Article 19. The right to seek asylum is also guaranteed under Article 18 of the EU Charter.

The European Court of Human Rights addressed maritime pushbacks in Hirsi Jamaa and Others v. Italy (2012), finding Italy violated the ECHR by returning migrants intercepted at sea to Libya. In N.D. and N.T. v. Spain (2020), however, the Grand Chamber accepted certain summary returns at the Melilla fence, narrowing protections in cases the Court framed as involving "culpable conduct" by applicants.

Documented pushback practices have been reported along the Croatia–Bosnia border, the Greece–Turkey land and sea borders, the Poland–Belarus border during the 2021 crisis, and at the US–Mexico border under Title 42 (2020–2023). NGOs including the Border Violence Monitoring Network, Human Rights Watch, and UNHCR have repeatedly called for independent monitoring mechanisms. Frontex, the EU border agency, has faced internal and OLAF investigations over alleged complicity in Aegean pushbacks, leading to the 2022 resignation of Executive Director Fabrice Leggeri.