PARIS, July 26 (Reuters) - France"s foreign ministry said on Monday that Iran was endangering the chance of concluding an accord with world powers over reviving its 2015 nuclear deal if it did not return to the negotiating table soon. "If it continues on this path, not only will it continue to delay when an agreement to lift sanctions can be reached, but it risks jeopardising the very possibility of concluding the Vienna talks and restoring the JCPOA," or Joint Comprehensive Plan of Action, foreign ministry spokeswoman Agnes von der Muhll told reporters in a daily briefing.