Montenegro has officially declared itself independent in a special parliamentary session ratifying last month’s referendum. The May 21 poll approved a resolution to break away from Serbia, the former Yugoslav republic with which it had been federated since 1918. Pro-independence deputies wore red rosettes. Opposition deputies who wereagainst the split boycotted the assembly session.The tiny republic bordering the Adriatic with its population of just 600,000 people is the last of the former Yugoslav republics to break with Belgrade. Montenegrins began taking to the streets to celebrate the event. Just over 55 percent of the population voted to secede from Serbia.