Which military strongmen played an important role in the era described in the text? "written constitutions were not, however, sufficient to enforce order in the new countries of the region. particularly in the 1825–50 period, latin america experienced a high degree of political instability."

The correct answer is Caudillos

Explanation:  The term caudillo, from the Spanish "caudillo", refers to a  military-political leader in charge of an authoritarian force.  This term is usually associated with Latin America.  nineteenth and early twentieth century, or related  at the time Franquista, in Spain. Caudillismo sustains  it's because of personality worship. The warlords  are able to command large numbers of people  and hold the attention of vast enthusiastic crowds.

not sure might be he acquired the entire oregon territory from great britain