A Russian delegation led by Col. Mikhail Botvinko, flying an Antonov An 30 turboprop, conducts the first Open Skies Treaty surveillance operation over the US. This was only a practice mission, as the Open Skies Treaty has yet to be formally ratified by all participating countries.
The Pentagon awarded a contract worth over $2 billion for the next batch of F-35 engines to Pratt & Whitney on June 5. The deal for Lot 17 F135 engines, totaling $2.02 billion, is expected to be completed by December 2025.