In his letter to the Russian president, Mr. Orbán wrote the following: “Violent and incomprehensible attacks of this kind cause great pain to all nations, but they cannot and will not diminish our common commitment to combating terrorism. Mr. President, allow me to assure you of the support of Hungary and the Hungarian government in these difficult hours. My compatriots and I share in the grief of the victims’ families and wish the injured a speedy recovery.”