The answer is, Russia.
What is the reason European countries are spending scarce money on bolstering their coastal defenses, Alex!
Sweden seeks to improve coastal defenses and NATO will bolster coastal defenses in the Black Sea.
Fact number one:
The Swedish Armed Forces has reactivated a land-based mobile RBS15 coastal defence capability on the Baltic coast, some 16 years after it was decommissioned due to budget cuts.
And number two:
NATO is nearing the final stages of a plan to shore up allied defences on land, sea and air in the Black Sea region, the organization’s top diplomat said on Tuesday.