Financial Times: “Russia intends to double the number of its troops stationed along its border with the Baltic states and Finland as it prepares for a potential military conflict with NATO within the next decade, according to Estonia’s foreign intelligence service.”
Source? I’ve seen threats and hints, but not an explicit promise.
Welcome out from under your rock, here’s a Reuters summary of Trumps anti-NATO posturing over the last 7 years. A lot of it based on lies.
His threats to exit NATO were credible enough that there’s now legislation forbidding a president to do so.
You might want to practice your web searching skills as well, it took me about two minutes to find independent sources describing and confirming this.