The bloc has resolved to monitor a UN arms embargo, which is routinely flouted. The naval element had been a sticking point for some countries because of the possible incentive for migrants looking to reach Europe.
Hundreds of migrants staged a demonstration on Saturday in which scuffles broke out with the Bosnian police. The migrants were protesting conditions at camps and their treatment by border authorities.
A new "wave" of Syrian refugees reportedly returned home from Lebanon last week. Meanwhile, people continue to be displaced in northwestern Syria, where fighting continues.
Border police in northwestern Italy arrested 10 people who allegedly took undocumented migrants from Italy to France at least 16 times.
Spanish rescuers picked up a total of 87 migrants in three different boats last week, including a baby who had been born in one of the boats just before the rescue.