The State Department notified Congress that the sale comprises mid-range, mobile HIMARS artillery rocket systems, associated ammunition[,] and related equipment.
[...]
The department said the sale would support U.S. foreign policy and national security objectives by bolstering the defensive capabilities of a NATO ally. The department also said Poland is a force for political stability and economic progress in Europe.

"The proposed sale will improve Poland's military goals of updating capability while further enhancing interoperability with the United States and other allies," it said.
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