While governments urge caution, calls are rising across Europe for Syrians who fled the Assad regime to return.

What is the extent of the Syrian refugee crisis? Can Syrians now return home? What have host countries said? We explain.

STORY: Najem al-Moussa and his family have been glued to the news of Syrian President Bashar al-Assad's overthrow in their tiny Athens apartment.Although delighted he is gone, Moussa now fears his family will be forced to return to the devastated country they fled in 2015.

The fall of Assad's regime has forced the EU to reconsider its long-standing policy.

Syria has produced the largest number of migrants in Europe, the eighth annul report on asylum rights by the Catholic Migrantes Foundation said Wednesday. "Unfortunately, the Syrian situation has recently returned to the forefront,