Top Ten Biggest Army in the Worldの総合ガイドをお届けします。専門的な知識が詰まっています。

South Korea keeps about 555,000 active troops, plus over 3 million reservists. This is a country where compulsory military service is normal, like doing your laundry—every man serves for about 18 months. They balance high-tech gadgets (hello, K-pop and Samsung) with a ready-for-anything attitude.