Russia warned Turkey it would pay for shooting one of its warplanes. Turkey said Russia's plane was flying over Turkey. Moscow said it was above Syria. Turkey warned Russia before about this. Turkish pilots said they warned the Russian pilots. A Russian pilot said he got no warnings. He said he was flying over Syria.
Putin asked millions of Russians not to go to Turkey. Russian holiday firms will stop tours to Turkey. It will also be more difficult for Turkish companies to trade in Russia. Turkey's energy might be hit. It gets most of its oil and gas from Russia. Russia might also stop plans to build Turkey's nuclear power station.