The system was much the same in North Korean cities, which were divided into sections for conscription purposes. Sometimes the leaders in urban areas called for volunteers. If the response was lacking in enthusiasm, men were singled out and requested to “volunteer.” This method was invariably successful, since a man who refused could be deprived of employment.

The conscription program was speeded up along with other preparations as invasion plans neared completion. About 12,000 men were inducted from March through May 1950 and given 6 weeks of basic training at such camps as the No. 2 People’s Training Center at Sinuiju.

U.S. Marine Operations in Korea 1950-1953 Volume I (of 5) — Part 31

In some communities the men eligible for military service were requested to attend a meeting. Upon arrival, they were taken in trucks to a training center and compelled to enlist.

U.S. Marine Operations in Korea 1950-1953 Volume I (of 5) — Part 31

Harsh as such methods might seem, they were gentle as compared to the forced conscription of ROK civilians after the invasion got underway. Both men and women in captured cities were crowded into school buildings, given political indoctrination and forced to learn Communist songs. After a week of this curriculum, the men were inducted both as combat recruits and laborers. And though the women were told that their service would be limited to duty as nurses or clerks, some of them were coerced into carrying out reconnaissance or espionage missions.[40]

U.S. Marine Operations in Korea 1950-1953 Volume I (of 5) — Part 31

The transition from a cold war to a shooting war in Korea should not have surprised anyone familiar with the events of the past 2 years. For several hours, indeed, there was a reasonable doubt on the historic morning of 25 June 1950 whether an undeclared war had begun or merely another large-scale NKPA raid across the frontier.

But this time it was the real thing. Commencing at 0400, 7 infantry divisions and an armored division swept across the 38th Parallel, with 2 infantry divisions in reserve. From right to left, the NKPA order of battle was as follows:

The 6th Infantry Division along the west coast, sealing off the Ongjin Peninsula and moving on Kaesong; the 1st Infantry Division advancing on Kaesong and Seoul; the 4th and 3d Infantry Divisions and 105th Armored Division attacking in west-central Korea and converging on Seoul; the 2d and 15th Infantry Divisions driving toward the Hwachon-Chunchon axis in east-central Korea; and the 5th Infantry Division taking the route along the east coast. Following close behind were the two reserve infantry divisions, the 13th and 15th.[41]