Combat Encounter News Today

And calculated adjustments. when threats raise, we want to make sure that our air crews and our ground crews are operating safely, and that we take into account all possible threats. >> reporter: in the latest sudden combat encounter, they shot down an iranian-made drone threatening southern troops just days after the u.s. also shot down a syrian fighter jet and another drone, all in self-defense, according to the pentagon. a key question now, after three shoot-downs, can russia even control syr...