The gender wage gap is terrible in Korea for an OECD country. But from my personal experience, I can't think of any man over 30 who doesn't work at least 40 hours a week and easily half the women I know barely work 20 or less. When properly analyzed it is reasonable here. Also, it's worth considering men have to do like 20 months of military service which is a brutal example of sexism.
Interestingly, the president-elect ran on a campaign promising to disband women's ministry (it's misleadingly called the ministry of gender and family in English). The Internet debate here between men and women is highly toxic.
It is the same in Finland (6 months to a year though). Shouldn't the women learn how to knit? It is one of the reasons that Finland was able to beat the Russians after all - the Finns were warm enough in a very hard winter.
I think the whole conversation is toxic around these topics, which is why people read the headlines and say "See! I knew it!!" but don't have a look at anything behind what makes that headline relevant or not.
The military thing is odd, it's mostlyba waste of time. Many of them aren't even soldiers. They could have people of varying genders do any sort of public service.
It is a waste here too - a tradition from the past. Guys can do some kind of civil service instead, but most go to train. In a real war situation, I suspect it probably won't make much difference.