Netherlands has sent four F-35 warplanes to NATO ally Bulgaria to help with its air-policing tasks amid the Russian invasion of Ukraine, the defence ministry said on Wednesday.
The Dutch warplanes, along with Bulgarian MiG-29 fighter jets, will help protect the airspace of the Black Sea country until May 31, in line with NATO's integrated plan for air and anti-missile defence.
They will replace four Spanish fighter jets that have been supporting airspace surveillance of Bulgaria since the middle of February.
