There is no major war underway right now. And after Trump became the president of the United States, the cooperation between the US and Russia has increased in Syria and other conflict areas.
What happened last week? There was no firing between the US and the Russian troops. On the other hand, the Turkish troops attacked the SDF (US-backed coalition of Kurds and Arabs) in the vicinity of Manbij. The SAA (backed by the Russians) provided support for the SDF.