That list probably came from here
https://www.globalfirepower.com/countries-listing.php
They use a very flawed analysis. For example they rank the US as #4 in naval strength with China, Russia, and North Korea ahead of them because they only measure strength by number of hulls. The US Navy in reality is the most powerful navy in the world because while having fewer hulls, each hull is more capable. If the navies are measured by total tonnage instead the US is way out in front
Largest Navies in the World 2022 - World Populace
(scroll down a ways)
- United States – 3,415,893
- Russia – 845,739
- China – 708,886
- Japan – 413,800
- United Kingdom – 367,850
- France – 319,195
- India – 317,725
- South Korea – 178,710
- Italy – 173,549
- Taiwan – 151,662
US Navy destroyers today are actually closer in tonnage to a WW II heavy cruiser. They are basically cruisers with ASW capability. The US has a little less than 100.
Japan has been in this cycle for a couple of decades now. They are beginning to even out now.
The birthrate in all developed countries is below replacement rate. The only developed countries that are growing are ones who take in immigrants. The US is one of the few that is growing because of this.
As child mortality drops so does the birthrate. The birthrate in most developing countries is stabilizing because infant mortality has declined due to childhood vaccination programs in those countries.
The wounded to dead ratio in Russia is much closer to 1:1 than other modern militaries. Their battlefield evacuation capabilities, and priorities are very bad. A large number of wounded become KIA because of poor battlefield medicine. Among those who survive also has a very high rate of limb loss because nobody giving first aid know how to apply a tourniquet correctly.
The Ukrainian claims for Russian dead is probably the most accurate number out there. It may be low because it doesn't account for wounded who die off the battlefield.
The entire developed world will be declining soon, if they haven't started already. In the long term a smaller population is actually a benefit. With increased automation fewer and fewer people are needed to make products and with fewer people, the wealth is concentrated in fewer hands so people have more disposable income. An economy in which the bulk of the population were upper middle class or close to it would have an incredibly robust consumer spending sector.
The hard part is the transition from large population to stable, smaller population. Japan has been lumping that hurdle for nearly 30 years now.