Add Yahoo as a preferred source to see more of our stories on Google. The U.S. is learning lessons from Ukrainian attacks on Russian air defenses. Severe damage inflicted on Russian naval vessels in ...

Russia’s war against Ukraine has shaken the entire world and countries, particularly in Europe, are busy drawing conclusions from this geopolitical earthquake. Germany has decided to invest €100 ...

Russia's invasion of Ukraine has upended what air superiority looks like, a US general says. Neither Russia nor Ukraine has achieved sustained or substantial air superiority. NATO must draw lessons ...

Air quality research is the study of how different activities change the composition of our atmosphere and then trying to understand how those changes could impact human and environmental health.