Former French head of state Nicolas Sarkozy has announced that he is a candidate to run again in next year's presidential election.
In order to stand, he must first win his centre-right Republicans party's primary in November.
Mr Sarkozy said he "felt he had the strength to lead the combat at such a tormented moment in our history."
No-one doubts his energy, but a number of obstacles must be overcome if he is to fight his way back to the Elysee.
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