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Middle East
Name: Golan Heights
Status: Israeli-occupied. Captured from Syria in the 1967 Middle East war, and annexed in 1981, a move condemned internationally. Lebanon claims Shab'a Farms area.
Population estimate: 20,000 Israeli settlers, 20,000 Syrians
Saudi Arabia launches Yemen strikes
A Saudi-led coalition launches air strikes against Houthi rebels in Yemen, saying it is "defending the legitimate government" of President Hadi.
Tuesday's devastating attacks in Brussels show IS's European network is still at large, despite a year of intensive efforts by security forces to close it down.
Scientists are debating whether it's possible to harness the power of gravity for interstellar space travel.
The four-year-old boy who has become the centre of a controversy between India and Pakistan - and between his father and mother.
Why, almost 60 years after he first appeared in the Daily Mirror, is a layabout lout from north-east England still so loved around the world?