Russian political meddling may be new to Americans, but in Eastern Europe such interference has long been common. That’s particularly true in former Soviet republics that look toward the West while seeking to hold on to their security and sovereignty.

As the leader of Moldova’s main governing party, I understand all too well the weight of unwanted Russian influence. I also know how critical it is that the West support the security and freedom of nations sitting on the front lines of Russia’s military and informational aggression.

...