The Qin Dynasty and the Han Dynasty are two important dynasties in China's history, and they both implemented some important measures to strengthen centralization and consolidate their rule. The following are the main measures taken by the DPRK and the ROK:

The qin dynasty way:

1. Implement the county system: abolish the enfeoffment system, divide the world into 36 counties, and strengthen the central government's control over local governments.

2. Unified measurement: promulgate unified measurement standards to promote trade and economic development.

3. Same script: unify the script, take Xiao Zhuan as official script, and promote cultural exchange.

4. Cars on the same rail: unify the gauge of vehicles and facilitate transportation.

5. Building the Great Wall: The Great Wall was built to resist the invasion of nomadic people in the north.

Han dynasty:

1. Implement the favor decree: grant the land of the vassal state to its descendants, which weakened the strength of the vassal state and strengthened centralization.

2. Strengthen the supervision system: establish a secretariat system to supervise local officials and prevent local separatism.

3. Strengthen Confucian education: advocate Confucianism, set up imperial academy and cultivate talents.

4. Develop agriculture: take measures such as paying taxes lightly and building water conservancy projects to promote agricultural development.

5. Strengthen military strength: form cavalry, strengthen border defense, and fight against foreign enemies such as Xiongnu.

These measures laid the foundation for the prosperity and development of Qin and Han dynasties and had a far-reaching impact on later generations.