ISTANBUL — Barely a day after the Pentagon's top official arrived in Turkey in a bid to cool growing tensions between Ankara and Washington, a Turkish lawyer filed a criminal complaint against him and two other senior U.S. officials. It accused Marine Gen. Joseph Dunford, the Joint Chiefs of Staff, Gen. Joseph Votel, the top U.S. commander in the Middle East, and National Intelligence Director James Clapper of conspiring with the plotters behind the failed July 15 coup attempt, which ended only after a rebellious faction of the military had bombed parliament and...