Poland announced on Tuesday its willingness to hand over all of its fighter (MiG) aircraft to Ukraine, but the United States of America (US) immediately stopped the plan from being carried out.

Joe Biden's administration was surprised by the Polish initiative, although it had already been admitted by the US Secretary of State, Antony Blinken.

The Pentagon spokesman felt that such a delivery is "not feasible" and argued that it "raises serious concerns for the entire NATO alliance."

The plan was for Poland to cede its entire fleet of MiG-29s to the U.S., sent to the U.S. air base in Ramstein, Germany, and then on to Ukraine. In return, from the US, the Poles would receive American-made F-16 fighters. These would be second-hand aircraft, "with operational capabilities corresponding" to the MiGs that would go to Ukraine.

Poland has called on other countries that have Russian MiGs to follow its plan. In fact, the appeal is aimed at Bulgaria and Slovakia, which, like Poland, are part of the Atlantic Alliance but continue to operate the Russian-made fighters.

Ukrainian war pilots only have experience with Russian-made MiG fighter planes, as do other former Warsaw Pact countries that have since joined NATO, such as Poland.

Officially, the Polish initiative "caught by surprise" the US government, although this exchange was mentioned last Sunday by Antony Blinken. In an interview with CNN, the head of US diplomacy confirmed that his country was "actively working" with Poland for this delivery of MiG-29s to Ukraine, with consequent compensation with F-16s for the Poles.

"I can't talk about deadlines, but I can say that we are looking at it very actively," Blinken said while in Moldova. When Blinken admitted to these negotiations, Warsaw was resisting such an exchange. When Warsaw accepted, Washington refused. Read more