Officials say the successful march shows the nation is promoting respect for diversity.
Greece is an important partner to Serbia in developing its capacities for multi-national operations, EU integration and military education.
Washington is helping Serbia assume a new role as a training centre for international forces.
Regional countries participate in NATO cyber-security and other joint projects.
By joining the international coalition against ISIL, the Balkan countries are moving towards regional co-operation to fight terrorism.
Regional countries seek ways to show NATO their achievements and the need for Alliance membership.
Montenegro's parliament is expected to adopt a law introducing penalties for citizens who take part in foreign armed conflicts.
Authorities arrested 12 imams and continue to monitor radicals that may pose a threat to security.
The NATO member state provides technical assistance and training to Ukrainian intelligence agencies.
Authorities in Kosovo and Bosnia and Herzegovina detain more people suspected of ties to violent extremist organisations.
Actions by radical Islamists have sparked leaders and experts to call for a ban on radical extremist propaganda.
The recent anti-terrorism action was spurred by pressure from the public and the international community.
Regional countries work to address the security risks posed by jihadists returning from Syria and Iraq.
Historians collaborate to prepare the common European history during the World War I period.
ICTY chief prosecutor Serge Brammertz said the country's progress in dealing with war criminals is evident.