Retired General Jack Keane, former Vice Chief of Staff of the U.S. Army and a long-standing voice on defense readiness, has joined the board of REalloys as the company brings online North America’s first industrial-scale heavy rare-earth processing and metallization platform dedicated to the defense supply chain.For decades, the U.S. defense industry relied on Chinese processing to turn rare earths into finished metals and alloys that could be used in weapon systems. A newly announced merger between Blackboxstocks Inc. (NASDAQ: BLBX) and…