(ANSA) - BELGRADE, MAR 31 - To achieve "a just peace," we must "continue to press Putin to see reason" and "understand that aggression against a neighbouring country is unacceptable," Foreign Minister Antonio Tajani said during a visit to Bukha, Ukraine. "Now, with the sanctions and all the initiatives we have taken, we must make Moscow understand that international law cannot be violated," Tajani said, adding that "our unity and determination must be aimed at forcing Russia to sit down at the table and not demand things it cannot demand." (ANSA).