Question

document 3: president herreras reaction to the annexation of texas (1845)
by the president of mexico josé joaquín de herrera to the national congress of the mexican republic in 1845,
considering:
that the congress of the united states of the north has, by a decree, which its president signed, resolved to
incorporate the territory of texas with the american union; that the manner of the united states appropriating to
itself territories upon which other nations have rights, introduces a monstrous novelty, endangering the peace of th
world, and violating the rights and powers of mexico;
that the said annexation of texas to the u. states tramples on the principles of society, attacks all the rights that
mexico has to that territory, is an insult to mexican dignity as a free and powerful nation, and threatens our
independence and political existence;
that the united states, having trampled on the principles which served as a basis of friendship, commerce and trad
between our nations...
it is decreed
1st. the mexican nation calls upon all her children to the defense of her national independence, threatened by the
usurpation of texas, which is intended to be realized by the decree of annexation passed by the congress, and
sanctioned by the president, of the united states of the north.
2d. in consequence, the government will call to arms all the forces of the army...

Explanation:

The document is about President Herrera's reaction to the Annexation of Texas in 1845, involving historical events and political relations between Mexico and the US. The subfield of Social Science that best applies is History, as it deals with historical events, political history, and international relations in a specific historical context.

Answer:

Social Science - History