The connection between the 2nd Great Awakening and the Mexican War can be understood through the lens of Manifest Destiny, a belief that emerged during the 2nd Great Awakening. This religious revival movement emphasized individual piety and a moral obligation to spread Christianity, which many people interpreted as a divine endorsement for westward expansion. The intense fervor of the 2nd Great Awakening fueled a nationalistic spirit that contributed to the desire for territorial expansion, ultimately leading to support for the Mexican War.
While the 2nd Great Awakening was primarily a spiritual movement, it instilled a sense of entitlement and purpose among Americans, aligning with the goals of Manifest Destiny. As leaders like John L. O'Sullivan articulated the idea that America was destined to expand its borders, the rationale for the Mexican War gained traction. Key figures of the period, such as President James K. Polk, capitalized on these sentiments, promoting war as a means to fulfill this perceived national destiny.
Thus, while the 2nd Great Awakening and the Mexican War are not directly causative of one another, they are interconnected as part of a broader cultural and ideological movement in 19th-century America. Both movements shared themes of individualism, moral obligation, and a vision of American exceptionalism that justified expansionist policies. The resulting military conflict and territorial gains from the Mexican War can be seen as a manifestation of the renewed religious and nationalistic zeal born out of the 2nd Great Awakening.