A bomb attack in Istanbul evoked memories of violence ahead of tense 2015 elections, and could tee up another security-focused campaign for Turkish President Tayyip Erdogan and even a Syria military intervention ahead of next year's likely tight vote.
The attack that killed six people on a busy Istanbul street on Sunday has brought national security back on the political agenda. It comes seven months before an election in which Erdogan hopes to extend his 20 years in power despite Turkey's deep economic troubles.
