article_snippet: Syriais now into civil war fifth year, with .
article_snippet: hundreds of thousands killed and millions of Syrians displaced.
article_snippet: Syria sank into civil war after a peaceful street uprising .
article_snippet: The revolt spiraled into an armed insurgency, which has deepened .
article_snippet: civil war has killed more than 200,000 people and displaced .
highlights_snippet: Syrian president has been in power 15 years and is presiding over civil war .