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Thank you for your question.
Please look at http://www.leginfo.ca.gov/cgi-bin/displaycode?section=fam&group=02001-03000&file=2090-2093
If it does not apply in your situation, then the Turkish divorce decree is valid in California and other US States, and you are not legally married anywhere.
As stated at
"To terminate a legal marriage recognized in Turkey, American citizens are required to obtain a court divorce decree from a Turkish civil court. Divorce decrees issued in jurisdictions outside of Turkey are not considered valid for purposes of divorce in Turkey."
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