Officer of the Ukrainian Air Force Command, Colonel Denys Smazhnyi tells RBC-Ukraine how Ukraine's air defense has changed ...

President Donald Trump’s firing of Gen. CQ Brown Jr. as chairman of the Joint Chiefs of Staff is drawing mixed reactions on ...

Building lethality in the military may be the buzzword for the new Trump administration, but busywork and paperwork have ...

The 2009 finding under the Clean Air Act is the legal underpinning of a host of climate regulations for motor vehicles, power plants and other pollution sources.