A people that cannot defend itself, and reproduce itself, will be replaced.
Historically most societies have said that it is the duty of men to bear the hardship and danger of war, and the duty of women to bear the pain and danger of childbirth.
A poll, taken back in 2014, showed that only a minority of Americans and citizens of many other countries refused to say that they would fight for their countries. At the same time the fertility rate in the USA and many other countries has fallen below the replacement rate.
On one level, I’m pleased at these trends. Being an old-time liberal, I’m glad the world’s population increase is starting to level off, and I oppose U.S. military interventions of the past few decades.
Also, it is a mistake to read too much into these trends.
Just as it was wrong to think that population increase would never level off, it is wrong now to think that population decline would never bottom out. And the fact that many Americans are reluctant to be shipped overseas to fight doesn’t mean that they wouldn’t defend our country if it really were in peril. So maybe there is no real cause for alarm.
But still. Having children and rearing them to be responsible adults requires great sacrifice. Serving your country in time of peril requires great sacrifice. What happens to a nation whose citizens decide individually, on a cost-benefit calculus, that these sacrifices are not worth making?
I wondered whether there was any correlation between a nation’s willingness to fight and its fertility rate. I took the nations in the 2014 poll and looked up the World Bank’s most recent estimates of their fertility rates to see if there is some correlation.
If there is a correlation, it is a weak one.
With one exception, all the surveyed nations with fertility rates above the replacement rates had more than half the population expressing a willingness to fight. But some nations with low fertility rates also had a relatively high willingness to fight.
Ukraine and Russia and China all had lower fertility rates than the USA and a greater percentage saying they’re willing to fight. China had a relatively low fertility rate and a relatively high willingness to fight.
I provide the numbers below. Make of them what you can.
Notice that fertility rates are estimates, and estimates differ. The map above, the figures below and the figure for India in a previous post were drawn from different sources. Also notice that most of the nations with the highest fertility rates were left out of the survey.
The minimum fertility rate needed to replace the current population is 2.1 children per woman. The global average fertility rate is 2.4 children per woman
UNITED STATES.
Willing to fight: 44 percent.
Fertility rate: 1.64
RUSSIAN FEDERATION
Willing to fight: 59 percent.
Fertility rate: 1.50.
UKRAINE
Willing to fight: 62 percent
Fertility rate: 1.22
CHINA
Willing to fight: 71 percent
Fertility rate: 1.70
INDIA
Willing to fight: 75 percent
Fertility rate: 2.18
JAPAN
Willing to fight: 11 percent
Fertility rate: 1.34
GERMANY
Willing to fight: 18 percent
Fertility rate: 1.53
UNITED KINGDOM
Willing to fight: 27 percent
Fertility rate: 1.56
FRANCE
Willing to fight: 29 percent
Fertility rate: 1.83
CANADA
Willing to fight: 30 percent
Fertility rate: 1.40
AUSTRALIA
Willing to fight: 29 percent
Fertility rate: 1.58
BRAZIL
Willing to fight: 48 percent
Fertility rate: 1.71