It's the bloodiest scene in France since the Second World War.More than 120 people have lost their lives after at least six attacks across Paris last Friday night.French authorities say the death toll is likely to rise as many of the injured are in critical condition.This is the fourth time France has been under terrorist attacks this year, ten months after the world was shocked by the Charlie Hebdo shooting in January.The Islamic State group has claimed responsibility for the attacks, which took place a week after President Hollande announced plans to deploy the only French aircraft carrier to the Persian Gulf to fight the group.So, how do analysts look at the timing and reasons for the attacks?What will the attacks bring to France and the world?And how can the global anti-terrorism efforts be more effective?