(COPENHAGEN, DENMARK) – Russia’s infantry campaign in Ukraine is becoming increasingly difficult to sustain, pushing Moscow to turn its attention towards the Baltic region, according to defence experts. Denmark’s Prime Minister described a recent drone incursion into Danish airspace as the most serious attack yet on the country’s critical infrastructure. Several flights were disrupted after multiple large drones were detected, including near a key military base. Norwegian authorities also suspended operations at Oslo’s commercial airport as a precaution. Defence editor…