Germany is seeking to deport four foreign residents of Berlin over their alleged activity at pro-Palestinian protests, potentially testing a foundational law enacted after the Holocaust. The residents, including citizens of the EU and the US, face expulsion based on separate allegations tied to demonstrations and support for Hamas. The deportation orders reference Germany's 'Staatsräson' doctrine, which states that the country must defend Israel as a justification for its own existence. The move comes as Germany tightens immigration restrictions.