Military Convoy in Latvia
Had to stop at the roadside near Lithuanian border because a convoy of military vechicles and police cars drove towards us. At the time we had no idea what was going on; on the Lithuanian side of the border we got mobile emergency alerts to our phones, but we couldn't understand Lithuanian, so we deduced it must be the simplest explanation: a zombie outbreak in Lithuania. Turned out it was part of the Saber Strike 2018, a US-led multinational exercise. Or so they say.