Greece’s government said it will be represented at the International Court of Justice at The Hague in relation to a claim for German war reparations by relatives of victims of a massacre in a Greek village during World War II.

“I have taken the decision that Greece intervene at the International Court of Justice at the Hague on this specific case,” Prime Minister George Papandreou told his ministers in Athens today, according to an e-mailed statement of his comments. “We are faithfully serving the country’s interests as well as paying respect to those who were sacrificed for our nation.”...