Numbers for Chinese, Russian and DPRK navies are inflated by the huge numbers of small coastal defence boats armed with various missiles. Those can theoretically endanger enemy ships, subs and planes on coastal waters so they are counted as military ships.
Well I sincerely doubt Russian navy is larger than USA’s. Especially in the regions like the Pacific
Numbers for Chinese, Russian and DPRK navies are inflated by the huge numbers of small coastal defence boats armed with various missiles. Those can theoretically endanger enemy ships, subs and planes on coastal waters so they are counted as military ships.