The United States is sending a new batch of military aid worth $375 million to Ukraine, which includes a long-range weapon known as the Joint Standoff Weapon (JSOW). While the Biden administration highlighted the JSOW as a key part of this package, there’s more to the story than just providing Ukraine with new firepower. The Pentagon has a hidden reason for sending these weapons to Ukraine—offloading them will save the U.S. about $20 million per year in maintenance costs.

What Is the JSO...