I'm absolutely certain that it will happen again, when needed. I reject outright the very concept of a "greatest generation".
I’m not saying that that these last few generations were any less brave, heroic and patriotic. I volunteered. My nephews did, as well. As did hundreds of thousands, knowing full well that they were going to war, just like the WW2 guys.
They estimate now, that 1% of the population volunteers. Which is ok. It’s not for everyone and I wouldn’t want anyone next to me that didn’t want to be there. But those earlier generations didn’t seem to have the hatred and self-loathing that some do now.
They may have had some commie infiltrators but they didn’t have the radical Left/ANTIFA/BLM/AOC DemSocialist/Progressive/BernieSanders element, seemingly, growing. I think their numbers are way over estimated, but so many of these 20 & 30-somethings don’t seem to care or live in reality. They didn’t have a media monster so completely against everything that is America.
Look at the girl on US Women’s Soccer Team. She’s representing the US on the world stage. She is where she is because of America and that is how she responds.
Unfortunately, she’s indicative of a lot of folks nowadays.
Hopefully, I’m completely wrong.