Which is music to Putin's ears and why he wanted Trump in office (we can debate how much Russian influence lead to Trump's election, but it's clear they wanted The Donald).

Russia has the greenlight to keep doing Crimea things because Trump ain't finna issue no executive order for sanctions against them.

If Russian expansion happens unchecked, Europe would be forced to act because Putin's knocking on their door. If Trump hesitates to back Europe and military action breaks out, then yeah, WWIII.

This is unlikely to happen, which means it will.