Second Mexican War

### Result

American VictoryAmerican annexation of Baja California, Sonora, Rio Grande states.

## Belligerents

United States and Allies **United States**
 **British Republic**
 **Federal Republic of Germany**

Mexico and Allies **Federative Union of Mexico**

## Commanders & Leaders

 **Dan Forest**
 **William Holmes**

the Second Mexican-American War was a war between the United States of America and the Federative Union of Mexico. The war started on March 6 2066 with the Mexican invasion of the United States and ended on November 22 2067 with the Treaty of Santa Fe, when Mexican President Antonio Sanchez, serving after the death of President Diego Matias, signed it.

After the First Mexican-American War, relations between the United States and Mexico were always sour, sometimes improving but rarely did the two nations consider each other friends. in 2024, Roberto Lopez De Santiago was elected President. He harbored a deep hatred for US President Donald Trump, and despite the fact that Trump's second term was nearing its end, Santiago attacked Trump in fiery speeches, and is generally considered to be the inciter of the Anti-American Movement in Mexico. After Ron DeSantis was inaugurated in 2025, Santiago directed his hatred at the new President.

After Santiago left office in 2030, his successors got more and more radical, with the most radical of the radical being Diego Matias, elected in the 2060 election. Matias established the Federative Union of Mexico, and also removed term limits for Presidents. Also elected in 2060 was Dan Forest, a young and charismatic Republican Senator from Alaska. Forest had long understood that Mexico was a hostile force, and knew that with Matias in power, he very well might have to fight a war against a neighbor.

The Mexo-Amero Cold War began after this war, resulting in the Third Mexican War

This article is part of a series on:

**Second Mexican War**
Drug Cartel War
Wall Crisis
Franco-Spanish War
Second Vietnam War
Second Sahara War
Russo-Polish War
Third Mexican War

## Background and Causes

### Background and Early Period

Throughout the 19th, 20th and 21st Centuries, the US and Mexico remained at odds with one and other. The Zimmerman Telegram in World War I did little to help, and Mexico remained normally neutral during the Cold War. During the late 20th Century and into the 21st Century, illegal immigration from Mexico into the United States became a bigger and bigger problem. The first President to truly understand the magnitude of the problem and actively try to combat it would be Donald Trump. Trump's border wall, completed in 2022, was a statement. A statement that the United States would no longer tolerate flaunting of its laws.

"Trumpian" Conservatism (to the dismay of many leftists) became a staple of American Conservatism itself, and President Ron DeSantis was sure to continue the legacy of Trump. President DeSantis and President Santiago met multiple times, however they both hated each other. As violence against American tourists grew between 2026 and 2027, President DeSantis signed Executive Travel Ban 5767, banning travel to Mexico. In 2032, Rafael "Ted" Cruz was elected President, the third Trumpian President. President Cruz and Santiago's successor, David De Leon, met in a special diplomatic summit held in Laredo, Texas. President De Leon was slightly less radical than Santiago, however, he refused to take any action against violence in his country, even as the lack of tourism severely harmed Mexico's economy.

President De Leon's successor, Roberto Castilio, was a true radical. Elected in 2036, he used Mexico's economic crisis to blame the United States, saying that they were the reason for Mexico's suffering. President Cruz mostly ignored President Castilio, too focused on the Caribbean War (2037 - 2040) to care much about America's southern neighbor.

### World War III And Prelude To War

By the start of World War III, Amero-Mexico relations had broke down. President Cornelius Roosevelt (2041 - 2049) cared naught for Mexico, and neither did his successor, Steve Karson. Mexico stayed officially neutral during World War III, though many Mexicans supported China. Some Americans feared that China may even enlist Mexico's help, in a repeat of the Zimmerman Telegram. However, that never happened.

In the 2060 Mexican Election, Diego Matias was elected President. Matias was a radical, and openly declared his hatred for Americans, and, by extension, whites. In 2061, President Matias issued his famous "Bloody Declaration", in which he gave a speech on television denouncing the Americans as "violent imperialists". He spit violent hateful language, and for President Dan Forest, that was enough. President Forest removed the US Ambassador from Mexico and expelled Mexico's ambassador from Washington. All diplomacy with Mexico was shut off. President Matias then removed all term limits for Mexican Presidents.

On May 22, 2063, President Forest signed the Union Acts of 2063, officially annexing Canada into the United States. Despite wide-spread Canadian support for annexation, Matias used this to attempt to paint the US as imperialistic. President Forest and Vice President Lachman met with British President William Holmes in 2064 to discuss what to do about Mexico. Mexico had long been building up its military, which worried the world. Having just come out of a third world war, nobody wanted another conflict.

President Forest won re-election in a landslide in the 2064 election, and famously won all but 2 of the new Canadian states. He also began upping military presence at the border wall, which was slowly beginning to look like the long-gone Korean Demilitarized Zone. By 2065, Hostilities had increased dramatically after 7 Mexican spies were arrested at the border trying to cross. Furious, President Forest ordered President Matias to cease these acts of hostility or face several consequences.

## War (2066 - 2067)

### War Breaks Out

On March 6, 2066, a rocket was fired at a weaker point of the border wall in Arizona, and Mexican troops began flooding in. Within two hours war was declared, and the world's worst fears had been realized. Not ten years after World War III, another war had begun. 60,000 Mexican troops began attacking, with President Matias declaring this a "holy crusade to retake Mexico's lost lands." President Forest responded with 120,000 American troops, and nationalized the National Guards of Arizona, New Mexico, Texas and California.

Within 6 hours, Mexico had steamrolled into Phoenix. However, they faced harsh resistance as citizens and the city's police fought back hard. Over 200 civilians and 124 police officers were killed. However, at 10:23pm, American forces arrived in the city. They fought ruthlessly, and pushed the Mexicans out of the city. Mexican troops fell back to Tucson, and engaged in vicious and bloody street-by-street, house-by-house fighting with American troops, local police and armed civilians. By March 8, Mexican troops had been pushed out of Arizona. Some wanted to make peace with Mexico, but President Forest refused and fired up the populace to get revenge on Mexico. A gigantic counter-attack was launched, and troops flooded in Sonora, Baja California, and the Rio Grande States.

### Invasion of Mexico

Troops pushed hard into northern Mexico, with the Navy launching a huge naval invasion of Baja California. Sonora the the Rio Grande states would prove more difficult. the US had far larger numbers and better technology, but Mexican troops were fighting on home ground. By September 2066 Sonora had fallen. President Matias, desperate, tried to enlist the drug cartels that had ruled much of Mexico for decades. By bribing them enough, and promising not to arrest them, Matias won their favor. However, US spies learned of what was happening and revealed it. The public was outraged, and many formerly neutral Mexicans sided with the US.

After fully capturing the Rio Grande on Christmas Day, 2066, President Forest decided that he had gained enough land, and turned his attention towards making Mexico pay. Troops were ordered to move south and "bring hell with you." Using tactics reminiscent of General Sherman's March to the Sea, Troops moving south tore up roads, power lines and internet lines, burned farms, and destroyed communication centers.

President Matias would not bend, pledging to fight to the death. His popularity was quickly plummeting, however, and the secret police were deployed more and more to put down riots and kill dissenters.

### Setbacks in Veracruz and Yucatan

In Veracruz, long seen as the gateway to Mexico, American troops launched from Florida, Lincoln, and other Caribbean states began landing throughout January 2067. However, they suffered setbacks, and endured heavy casualties. In Yucatan, other Caribbean troops were landing, but their setbacks weren't as bad. Under the command of General (and future President) Christopher Reagan, American forces began slowly gaining ground.

### Britain and Germany join the War

Despite attempting to remain neutral, European nations began lending support to the US, grateful for American protection and assistance over the last century and a half. the British Republic officially joined the war on February 5, and the German Federal Republic joined on March 1. They began sending troops, though the numbers were small compared to the massive American army, it solidified the Amero-European relationship once more.

German troops were especially eager to please due to the American liberation of Germany from Russia during World War III. They fought hard, though weren't prepared for the tropical and desert climates in Mexico.

### Summer Gains and Surrender

Throughout spring, the advance towards Mexico city had been slow-going, but in summer the Allied force advanced quicker. This was mostly due to Mexico growing exhausted by the war, and less and less people willing to fight. The drug cartels abandoned Mexico all together and fled south. On July 4, American forces captured the city of Leon, and their next target was Mexico City itself. President Matias, watching his "holy crusade" collapse around him, committed suicide on November 1, leaving the Presidency to President of the Chamber of Deputies, Antonio Sanchez. President Sanchez, understanding that Mexico was doomed, begged President Forest for peace.

Forest, initially hesitant, decided to accept Sanchez's call for peace. Troops on both sides stopped firing, and peace talks were held in London. President Forest, along with British President Holmes and German Chancellor Stefan Gunther, presented Sanchez with the Treaty of Sonora. Baja California, Sonora and the Rio Grande States would be ceded to the United States, and Mexico would demilitarize itself, and a new border wall would be constructed that the US would pay for.

Sanchez signed the treaty on November 22, 2067.

## Aftermath

After the war, President Sanchez began demilitarizing Mexico as the US secured its new lands and erected a heavy fortified demilitarized zone along the border. Despite hopes of many Mexicans, President Sanchez re-instated term limits and announced he would not be running again. Many Mexican historians agree that by doing this, Sanchez sealed Mexico's fate.

During the 2072 Mexican Presidential Elections, Miguel Garcia was elected. Despite his public view as a pacifist, he spent much of his time as president secretly remilitarizing Mexico and preparing what he called the *Manifiesto de venganza* (Revenge Manifesto) which outlined for future Mexican Presidents how to fight the United States and win.

The war heavily impacted popular culture and public opinion. For one, many Americans wanted further revenge against Mexico, including the famous Arizona Rebuilding Committee. General hatred of Mexico grew during this period, however most Americans were willing to accept Mexicans as citizens so long as they followed American law. Despite this, the war did cause racist sentiments to briefly flair back up during the early 2070s, however the arrival of America's tricentennial helped many Americans move past it. Oscar Lachman, President Forest's Vice President, won the 2068 election in a landslide. The new President Lachman had to carry on the tasks of assimilating and rebuilding in the new land.

Lachman won re-election in 2072 in a landslide, and had to deal with the issue of the emerging Mexo-Amero Cold War.