For nearly 20 years, Russia's annual Victory Day parade on May 9 has been a less-than-subtle flexing of its military muscles.Tanks, artillery systems that fire rockets over short distances, and even Russia's long-range nuclear missiles capable of reaching the U.S. have snaked through Moscow's Red Square, surrounded by thousands of troops marking the Soviet Union's victory over Nazi Germany during World War II.In 2022's parade, just weeks after Russia's full-scale invasion of Ukraine began, President Vladimir Putin told soldiers they were “fighting for the same thing their fathers and grandfathers did."But this year the Kremlin announced ahead of the commemorations...