Spooked by the war in Ukraine, Russia's Baltic neighbors prepare for future conflict

RIGA, Latvia — They’re dotted on dozens of buildings across the Latvian capital : signal green signs with white stick figures of a family and the word “patvertne,” which means shelter. Installed everywhere from art deco buildings to wooden gates, the signs alert people to places to hide in the event of an attack — and have become one of many symbols of war preparedness in this charming city, which is crisscrossed with canals and looks nervously east at its Russian neighbor .