Ukraine is still fortifying its border with Belarus more than four years after Russia used the country to launch its assault on Kyiv. Roads near the border are now covered by anti-drone netting, and the surrounding landscape is filled with razor wire and anti-tank barriers. The Associated Press visited the area earlier this month, following rising tensions between Kyiv and Minsk. Ukrainian officials say they see no signs of a Russian troop buildup in Belarus, but they remain determined to strengthen the defenses of their border.

Maine Democrats are meeting to pick a candidate to face longtime Republican Sen. Susan Collins after Graham Platner dropped out of the race. Democrats' support has coalesced around former Senate President Troy Jackson, a fifth-generation logger from rural northern Maine. The new nominee will be selected at a state party convention in Bangor on Saturday and will have less than four months to campaign. Jackson campaigned alongside Platner during a failed bid for governor and was progressives’ favorite to replace him on the ballot. Democrats need a Maine Senate win to take back control of the chamber from Republicans.

President Donald Trump says the U.S. will open a formal investigation into the European Union’s trade practices. He claims the bloc has unfairly levied billions of dollars of fines against Google, Apple and other U.S. tech giants. A day earlier, the EU fined Google 890 million euros ($1 billion) for allegedly breaking digital antitrust regulations by corralling consumers toward its own services and apps to the detriment of competitors. Trump’s announcement comes a day after the White House said it would impose double-digit tariffs on imports from more than 60 countries. The White House accuses the countries of inadequately enforcing bans on goods produced by forced labor.