Concurrent with the second American incursion in South America, in 1984 the great Mexican battleship Manuel Azueta spotted a new kind of humanoid never seen before off the western coast of Africa. It was harassing the coast of British-controlled Mauritania near Nouakchott when a large figure was seen with telescopes from the desk of the battleship. It was about four times the size of a human, looked similar to a beautiful man, and had a buckler-style shield and gladius-style sword, and bathed the areas around it in light green light. It was an angel, and could only be more obviously an angel if it had wings. But the great figure was wing-less, and thankfully could not fly, or else the battleship would have been destroyed with no hope of retaliation. It shot a glowing blue orb at the battleship, very similar to the void blasts of demons, which hit and rocked the battleship greatly, but it had a displacement of 38,200 metric tons and was too steady and armored to sink. The battleship shot back with all nine of its 400 mm guns, but found the Angel had an identical aura to the demon aura, and was protected from harm in the same way. It would have probably traded shots with the Angel until it or the Angel was destroyed, but Australian submarines began harassing the battleship, and the Manuel Azueta had to retreat back to a Mexican shipyard on the east coast of Greenland.
Mexico never recovered from the destruction of Mexico City in 1979, and though it formed a small government center in the Queen Elizabeth Islands, it had much more difficulty than the United States in creating a stable government after the fall of its government center. Seattle and Los Angeles split off and became independent city-states. Buenos Aires was also a thorn in America's side, as the Mexican government had no means or will to control it, but Mexico was still a US ally, so troops in the area were harassed by lawless gangs that they needed to put down themselves. One lawless gang even got a hold of a company of light tanks and used it to attack the barracks at Cordoba, but the uprising was repulsed by the soldiers there. Also, builders set up another cluster of Tesla coils north of the US-governed city of Curitiba, which prevented total disaster when the second expedition north failed and the surviving IBIS walkers retreated. All three remaining IBIS walkers were heavily damaged, but could be salvaged and repaired rather than being rebuilt from scratch. Soon after, another cluster of Tesla coils was built north of the ruins of Asuncion and Salta.
Nain was also a thorn in the US's side. Diablo had turned south before attacking Nain and Port Harrison, the last American city east of the Mississippi, which had grown to a population of tens of thousands in the recent assaults from refugees fleeing to the city. It also had plentiful nuclear power plants in the area, and was where the other half of most of the electricity for the United States came from before Diablo's assault, and like the Midwest's plants before, now most of the plants were shut down or operating at much reduced capacity. So, the untouched city of Nain became a staging area for a new foolhardy Australian assault, and the fourth invasion didn't need to start with a large airlift like the first three did. The Mexican battleship Manuel Azueta pounded the city, but had no ground troops to force the city to surrender and had to move off when it was out of shells, allowing Australian transport ships to slip in thousands more fanatics. In 1985, Fanatics attacked the last fully functioning nuclear power plant at Richmond Gulf, which was indeed operating at full capacity, and defended by nothing but a few guards with pistols, which immediately surrendered in the face of mobs of thousands of religious Fanatics, both British and Australian. The Fanatics forced their way into the plant, ransacking it, and a few of them went to the control room. What happened next was unclear. It may have been accidental, and Fanatics might have killed the operators and been helpless to understand the controls and prevent the meltdown. Or perhaps they had specifically forced the operators to override the fail-safes, retract the control rods, and even increase the flow of fuel to the reactor. Whatever the case, there was a great meltdown at the plant, which exploded violently, killing a few hundred people instantly, but raining billowing clouds of radiation on Fanatics for kilometers around. Death for them wasn't instant, but thousands of Fanatics died in agony over the next few days, and bought Port Harrison a few more weeks of freedom. When more Fanatics arrived and the city surrendered, the chance that the first assault was an accident further decreased, as a second time Fanatics went to a nearby power plant, and let themselves be killed by its explosion and radiation. Questions still remained about that, but Chuck wondered if someone was maliciously ordering religious zealots to kill themselves in mass suicide, or if both attacks were the results of stupidity instead of malice. Either way, Fanatics destroyed the rest of the nuclear plants in the area with no further catastrophic meltdowns, so perhaps they were indeed simply uneducated and didn't understand the concept of nuclear power and radiation.