The biggest threat to the national security of all the affluent societies, whether it’s the U.S., Japan, Germany, France, Great Britain, or Sweden, is not the threat of foreign missiles but that of their aging population.
There is only one real solution: anti-aging breakthroughs. So that Western and Japanese populations can stay biologically youthful while advancing chronologically.
If the chronologically-advanced continue to be healthy and productive, they can boost the economy and safety net instead of collapsing them.