“The Korean War may have officially lasted from 1950 to 1953, but in reality it never quite ended. It began when North Korea invaded South Korea, and after many air and land skirmishes, the fighting ceased on July 27, 1953, when an armistice was signed. However, no peace treaty exists between the two countries, resulting in periodic deadly clashes that have continued to the present day.”
Source: This is South Korea’s elite cyber army that fights North Korea – MarketWatch