The first meeting between the police chiefs of Serbia and Kosovo is being hailed as a major step in the region's fight against organised crime.
Senior officials from the Kosovo Security Force visited NATO headquarters to discuss the force's transformation into an army.
Military-to-military co-operation with the US improves several Balkan countries' efforts to advance their defence systems and become NATO members.
A slew of reforms and awareness campaigns are among the steps Montenegro is taking to secure NATO membership before the end of 2015.
The British Embassy in Macedonia held training for 30 high-ranking officials in the security sector.
A NATO-led maritime operation in the Black Sea begins amid growing concerns over Ukraine.
Co-operation with the Alliance will help Serbia modernise its defence system and improve the country's military capabilities.
A deadly accident involving refugees from Syria and other war zones draws attention to a growing crisis for some Balkan states.
Albania remains committed to the NATO Readiness Action Plan, which "ensures that the Alliance is ready to respond swiftly and firmly to new security challenges."
Co-operation with NATO will benefit ordinary citizens by improving security, human rights and the capacities of independent institutions.
Faster accession to NATO would insulate Balkan states from Russian influence, experts say.
Kosovo and Serbia discussed the justice system in northern Kosovo as talks restarted after a year-long hiatus.
Military-to-military co-operation between the two neighbouring countries is important for regional and global peace and Serbia's military development.
Countries in the region are contributing to the fight against ISIL by providing weapons, sharing law-enforcement information and strengthening legislation against foreign fighters.
A new deal tightens ties between law enforcement agencies in Kosovo, Great Britain and Northern Ireland.