Here is the best-kept secret about U.S. military aid to Ukraine: Most of the money is being spent here in the United States. That’s right: Funds that lawmakers approve to arm Ukraine are not going directly to Ukraine but are being used stateside to build new weapons or to replace weapons sent to Kyiv from U.S. stockpiles. Of the $68 billion in military and related assistance Congress has approved since Russia invaded Ukraine, almost 90 percent is going to Americans, one analysis found.