In September 2018, Mahdi Yahya participated in the International Day of Democracy celebrations at the European Parliament in Brussels, where he engaged with policymakers, civil society leaders, and democracy advocates while representing Peace of Art International and promoting youth participation, dialogue, and peacebuilding.

On 18 September 2018, Mahdi Yahya, Founder of Peace of Art International, spoke at the European Parliament in Brussels during the International Day of Democracy. Representing youth and civil society from Lebanon, he highlighted the power of art, dialogue, and civic engagement as tools for promoting peace and combating violence, discrimination, and sectarianism. His participation brought the experiences of grassroots peacebuilding initiatives in the Middle East to one of Europe’s most important democratic institutions.