The Wall Street Journal writes about this, citing unnamed representatives of the US administration.
According to TASS with reference to the article, Washington promised Kyiv the supply of these drones back in August last year, but concluded an agreement with the manufacturing company only in December.
That is why four Vampire complexes will be sent to Kyiv no earlier than the middle of the year, and Kyiv will receive ten additional such systems only by the end of 2023.
On January 6, the United States provided Ukraine with a new $3 billion military aid package.