A high-ranking adviser to the President of Ukraine expressed confidence that his country will receive American-made F-16 fighter jets in the coming months, Sky News reports.

The head of the Administration of the President of Ukraine, Andriy Yermak, told journalists: “I believe that it is absolutely possible for Ukraine to start receiving aircraft by the end of the year.”

Hiermark said that Ukraine’s allies are “ready for action” but there are currently some “technical problems”.

Earlier, the Minister of Defense of Ukraine, Oleksiy Reznikov, said that Ukrainian pilots will begin training on fighter jets in July this year.

Denmark and the Netherlands have also declared that they are ready to train Ukrainian pilots on fighter jets.

The West wants Ukrainian pilots to train on the F-16 in Romania

NATO nations are moving closer to starting a program to supply Ukraine with F-16 jets in a few months, and the Western coalition is eyeing Romania as a possible base to train Ukrainian pilots, according to three people familiar with the plans, according to Politico.

“Romania is one of the locations that the coalition is looking at for training,” said one Western official, who spoke on condition of anonymity along with a current and former Defense Department official.

According to current and former Pentagon officials, the group is working on a contract to conduct aircraft training at a base in Romania. Lockheed Martin, which builds the F-16, is likely to lead the training, they added.

The Romanian Air Force has a fleet of 17 second-hand F-16s purchased from Portugal and is set to purchase another 32 from Norway. However, Bucharest recently approved a plan to purchase the more advanced F-35, Politico notes.