From 2007 to 2016, he served as the Secretary General of Religions for Peace-Italia. In 2008 he founded the Association “Ascoltare le Sofferenze” (“Listening to the Sufferings”) for Interreligious cooperation in Medicine and Health Care. In 2010 he was the Coordinator of the “Religions, Cultures and Human Rights: a complex relationship in evolution” international conference held in Rome at the Ministry of the Foreign Affairs. Since February 2010, Dr. De Salvia has promoted projects that work towards welcoming different religious and cultural traditions cultural traditions within hospitals and health facilities. From 2011 to 2018, he was a Professor of Cultural and Religious Mediation within the Master organised at Pontifical Salesian University in Rome. He is the head of delegations of Religions for Peace-Italia visits to Israel, Palestine, India, Nepal, China, Myanmar. Since December 2016, he has served as the President of Religions for Peace-Italia. He is a Co-President of Religions for Peace-Europe and since 25 January 2022, he has served as the President of European National Interreligious Bodies (ENIB) Religions for Peace-Europe.