The new B61-13 gravity bomb has just been completed by the NNSA nearly a year ahead of schedule. But what makes this weapon so special and strategic?<br /><br />In this video, you'll discover everything about the B61-13 — the newest and most powerful addition to the United States' nuclear arsenal — and learn about the evolution of the legendary B61 family, from its Cold War origins to its most modern versions designed to deter global threats.<br /><br />
