Answer:
The North Korean occupation of South Korea from June to September, 1950 constituted the first phase of the Korean War. On June 25, 1950, The Korean People's Army (KPA) crossed the 38th parallel between North and South Korea. The KPA advanced at incredible speed, capturing Seoul on June 28, 1950. Thus began the three-month North Korean occupation of South Korea.
Step-by-step explanation: