Russia's arms control point man cautioned Donald Trump's incoming administration on Friday that Moscow was considering a whole range of possible steps on nuclear testing due to what it said was Trump's radical position on the issue.

Russia and Ukraine have been locked in an intractable-seeming conflict that has thrown not only the two nations into a state of prolonged chaos but huge swaths of Eastern Europe as well. While ostensibly a war over territorial expansion and ethnic sovereignty,

US President-elect Donald Trump has said he’ll quickly negotiate an end to Russia’s war in Ukraine. This has got NATO allies wondering if he’ll withdraw US support for the government in Kyiv and force it to accept a permanent Russian occupation of Ukrainian land.