Aviation Week Network:

The Russian Air Force has substantial aircraft remaining in its inventory for an expected spring offensive in Ukraine if Moscow chooses to get them involved, so the U.S. and its partners must continue to deliver air defenses, Defense Secretary Lloyd Austin said following the latest meeting of the Ukraine Contact Group.

Austin says although U.S. intelligence does not see Russia preparing for a massive air attack, more systems such as Raytheon Patriots and European-built IRIS-T and SAMP-T defense missiles will be needed to keep Ukraine’s skies protected from air attacks.

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