Antonio López de Santa Anna — Mexico's dominant political figure for three decades — sought one thing above all: centralized authority. A soldier-politician who served as president 11 times (non-consecutive), he believed Mexico's chaos — coups, secessions, foreign invasions — stemmed from federalism's fragmentation.
Santa Anna's solution: the Siete Leyes (Seven Laws, 1835) — a centralist charter that:
Short term: He crushed Zacatecas and Texas (initially). Long term: No.
Centralization concentrated power — but without legitimacy, institutions, or inclusion, it fragilized the state. Santa Anna wanted control; he got collapse.