Hmm, where have I heard of this before?

Article 16: To ensure ecological safety and to maintain the ecological balance on the territory of Ukraine, to overcome the consequences of the Chornobyl catastrophe - a catastrophe of global scale, and to preserve the gene pool of the Ukrainian people, is the duty of the State.

Edit 1: Oh gosh, this is getting more interesting...

For many Ukrainians, the idea of saving soldiers’ sperm is at once personal and patriotic. It helps men who want to ensure something of themselves remains if they die, and it brings comfort to their partners. In a country now famous for its spirit of resistance, it is also one more way of fighting back.

https://www.nytimes.com/2023/04/16/world/europe/ukraine-soldiers-freeze-sperm.html#:~:text=For%20many%20Ukrainians%2C%20the%20idea,more%20way%20of%20fighting%20back.