A federalist breakaway from centralist Mexico, seated at Mérida — its second and decisive independence (1841–48) fielded its own army and navy before the Caste War forced it back into the Mexican federation.
Rejoined Mexico in 1848 after Mexico's military aid against the Maya Caste War (erupted 1847) was made conditional on reincorporation; the Caste War itself burned on for decades after.
The classic English-language account of the Maya Caste War (erupted 1847) whose crisis directly forced the Republic of Yucatán back into the Mexican federation in 1848.
Scholarly study of the social/political conditions in the Republic of Yucatán that produced the Caste War and ended its independence.