The German Air Force will be involved in protecting the south-eastern flank of NATO with Eurofighter aircraft starting at the end of the month, writes German news agency DPA.
A preliminary deployment was due to take off for Romania on Thursday, security sources told dpa in Berlin.
The plan is to send four Eurofighters and around 80 soldiers, who will take up positions at a military airfield near Constanta on the Black Sea. The deployment is being carried out at the request of NATO partner Romania.
Ukrainian ports on the Danube along the border with Romania have recently come under drone attack, with debris of the suspected Russian drones landing on Romanian territory.