When U.S. President Donald Trump and Russian President Vladimir Putin meet in Alaska on Friday, it will be the latest chapter in the 49th state's long history with Russia — and with international tensions.

Whether the U.S.-Russia summit can lead to a deal to produce peace in Ukraine more than 3 1/2 years after Moscow’s invasion remains to be seen.

Donald Trump's summit with Vladimir Putin in Alaska on Friday could be a decisive moment for both the war in Ukraine and the US leader's anomalous relationship with his Russian counterpart.