This was stated by US Ambassador to NATO Matthew Whitaker in comments to AFP.
"Demand for air defense systems is very high, and their availability is likely not where we would like it to be. Companies are developing new approaches to intercepting projectiles to address this issue. We will continue working on this every day, trying to locate existing stocks, and then we will ramp up production on both sides of the Atlantic to get supplies to Ukraine as quickly as possible before winter," the ambassador added.
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