A week ago, President Joe Biden softened on the issue of training Ukrainian pilots to fly the American-made F-16 fighter jets. Several NATO countries have expressed a desire to send flights to Ukraine, but the United States has been hesitant. Sensitive American technology can go wrong, the justification reads.

- This is something that Russia perceives as very aggressive and it is something that threatens Russia's ability to attack Ukraine from the air, so the plan may be very decisive, says SVT's foreign reporter Bert Sundström.

See also the entire War this week where SVT News deepens the latest news developments in the war in Ukraine in eight minutes.