This episode picks up at the end of the U.S. campaign in California, as the military shifted from combat operations to controlling and organizing newly claimed territory. We follow the final actions of Commodore Stockton and Captain Archibald Gillespie as they transition out of California and back to Washington. 

We also dig into the larger impact of the Treaty of Guadalupe Hidalgo, the growing global role of the Marine Corps, and the leadership legacy of Commandant Archibald Henderson. 

After losing Los Angeles to rebels, Archibald Gillespie sent word north, triggering a chain of events that brought Marines, sailors, dragoons, and militia into a series of brutal fights to retake the city. What followed were weeks of poor leadership, failed assaults, and hard lessons, culminating in the bloody Battle of San Pascual. 

We’ll walk through the breakdown in command, the resilience of the troops, and how wounded men like Gillespie kept pushing forward. The campaign wasn’t clean, and it wasn’t pretty. Supplies ran out, morale broke, and the U.S. took more losses than they expected. But after weeks of regrouping and a final push through San Gabriel, American forces entered Los Angeles for a second time.

This episode picks up as the U.S. shifts its attention west during the Mexican-American War. While Lieutenant Archibald Gillespie carried out covert operations across California, Marines were being mobilized, and the Navy split its focus. What followed was a fast-moving campaign marked by near-bloodless landings, flag raisings, and the temporary conquest of California.

Holding ground was another story. In Los Angeles, Gillespie was left in command of an undisciplined volunteer force. What started as a quiet occupation quickly unraveled into open resistance, sparked by poor leadership decisions, thin troop numbers, and local resentment. Over the next few weeks, Gillespie found himself outnumbered, undersupplied, and surrounded. This episode walks through how California was taken, how Los Angeles was lost, and why some historians blame Gillespie, while others point the finger at Commodore Stockton. 

This episode focuses on First Lieutenant Archibald Gillespie, a Marine handpicked by President Polk to carry out a secret mission in California before war officially broke out.

Gillespie was gathering intelligence, delivering covert messages, and helping shift the political landscape in favor of the United States. His mission was critical to gaining control of California without triggering international backlash.

In this episode, we cover the final campaign of the Mexican-American War. We'll follow the Marines and sailors from the assault on Alvarado to the brutal campaign through the Tabasco River, Tuxpan, and eventually inland toward the capital. Disease, harsh terrain, and supply issues challenged the campaign at every step, but the final push came with the assault on Chapultepec Castle.

The Marines played a key role in this attack, especially Captain George Terrett and his men, who helped break through the defenses and were among the first Americans to enter the city. Their actions, alongside the Army and Navy, were critical in ending the war. This episode takes a close look at their fight, their sacrifices, and how they earned their place in Marine Corps history.

In this episode, we’re focusing on the Navy and Marine operations along Mexico’s eastern coastline. The story begins with Marines being the first U.S. troops to cross into Mexican territory and follows their involvement in key amphibious assaults, including the challenging campaigns at Alvarado, Frontera, San Juan Bautista, and Tampico. 

We’ll look at what went wrong, what the Corps learned, and how these early fights helped shape the more coordinated joint operations that followed. You’ll hear how small detachments of Marines supported larger Army operations, adapted to changing tactics, and carried out complex missions with limited manpower. 

From Santa Anna's rise to power and his shift into dictatorship, to the opening shots at Gonzales and the brutality at Goliad, we trace how Texian resistance escalated into a broader national conflict.

We also discuss how Manifest Destiny shaped public sentiment, how the U.S. used diplomatic maneuvering backed by military force, and how the Marine Corps, despite its small size, played a crucial role in shaping the campaign. You’ll hear about General Zachary Taylor’s early victories, the strategic occupation of Matamoros, and how Marines were used to project force along both coasts.