Who is the man in history?

Su Qin and Zhang Yi are representatives of military strategists in the pre-Qin period.

During the Warring States period, in order to meet the needs of the times, vertical and horizontal alliances emerged. Zhang Yi and Su Qin supported Qin to unify the six countries or unite the six countries to deal with them by analyzing the world situation and balancing their interests. Sometimes the land of China was calm, sometimes it was blustery, and finally Qin destroyed the six countries and unified the world.

Extended data:

Vertical and horizontal alignment:

Interpretation: Vertical and horizontal: vertical and horizontal Lian Heng; Combination: opening and closing, a lobbying method of strategists in the Warring States period. To divide or win over by political or diplomatic means.

Example: During the Spring and Autumn Period and the Warring States Period, the grand historical scene made people yearn for it infinitely, but at the same time they felt extremely disappointed.

Grammar contains derogatory meanings. Generally used as predicate and attribute.