Within minutes of each other, these things all occurred or began:
The President called the Mexican Ambassador and told him the United States had declared war on Mexico.
Bunker Buster bombs were released from Air Force fighters which took out all the known tunnels into the States.
Troop carriers which had previously been slowly approaching the port of Vera Cruz under cover of darkness quickly entered the port, unloaded, and immediately began to set up a layered defensive perimeter.
Every home, business, warehouse, drug manufacturing plant, and property of the 5 crime families was raided. Known bad actors were eliminated, and assets were located and seized.
Known and identified street gang headquarters were bombed.
The American Embassy in Mexico City was shut down by its own Marine contingent and the Ambassador and his subordinates were arrested.
The banks in Mexico, the United States, and in multiple other countries were electronically raided and every single account associated with the Mexican crime families was sucked dry and put into a special account in Isabella's name (that took all of 15 minutes).
The Mexican/U.S. border was shut down completely by a full military blockade supported by helicopters, infrared vision, gun boats, amphibious troop carriers, and drone reconnaissance. Only commercial traffic and U.S. citizens returning to the United States were allowed to cross after a full inspection at the border crossing stations. All other traffic was stopped in its tracks by turning it back towards Mexico or elimination if they resisted with violence.
Special Forces units began moving through the major cities taking out known criminal street gangs, distributing the prepaid cell phones, and announcing where food and water supplies would be distributed to those in need. (This was to be the one on-going military action which would take a month or so to complete.)
Electrical power plants and sub stations were secured.
The airports were secured via cargo planes landing and disgorging troops along with portable anti-air and anti-missile batteries with light armor which were put in place along with drug and bomb sniffing dogs. Other heightened security measures were added to the standard airport security to prevent criminal activity.
****
As I hit the 5 minute mark on the countdown, the President called the Mexican Ambassador, who had been summoned earlier, into his Oval Office and over coffee said, "Mr. Ambassador, I am so thankful you were able to come to see me on such short notice."
The Ambassador shot him a sharp look, "Well, I certainly hope this is worth the disruption to my day."
Bill then smiled and handed the Ambassador a date and time stamped letter on presidential letterhead declaring the existence of a state of war between the United States and Mexico. It named all the grievances leading up to that declaration and was signed by the President.
"Perhaps other countries will think twice about attempting to assassinate a sitting President of the United States, Ambassador. You are dismissed."
"Mr. President, with all due respect, only your Congress can declare war!"
"Oh! Did you miss the announcement? That was passed about a week ago." Bill then waived to the Secret Service agents in the room to escort the Ambassador to his Embassy.
****
As I gave the first 'go' code, multiple F-15s dropped their laser guided bunker busters exactly where intelligence had found the underground tunnels. The timing was impeccable as my last 'go' code was transmitted only an instant before the first bomb buried itself into the ground. Soon muffled explosions, more felt than heard, shook the ground and small lines of indented surface lowered a bit to fill in the caves underneath.
One tunnel was currently in use by a car thief ring. The tunnel collapsing on all of them, giving them a fitting burial, the bomb having sucked all the oxygen from the tunnel and instantly stopping all the vehicles, knocking out the drivers and passengers in an instant before covering them in dirt and timbers. Something none recovered consciousness from.
****
Within a minute, the Port of Vera Cruz was awash in Marines. They fanned out to pre-assigned positions, not expecting resistance. Elements from the Navy were in place to oversee the port's operations within 5 minutes of our forces landing as a group broke down the door of the port authority and took control of the port traffic.
At least for the day, everything was shut down as the Marines immediately began to set up layers of increasingly capable defensive perimeters around the port to secure it from land and air incursions. It would be several hours before this was completed, but once in place, not even a mouse was getting past them.
There were two cruise ships in port and they were informed they were allowed to collect their passengers and leave the port. One had not yet disembarked its passengers and the other had just finished loading theirs from the evening's planned shore festivities, so that was fortunate.
The Navy took a bit of time to seal off the blockade, but ships don't move that fast. The Subs, however, were already in position and were tracking all the surface and any subsurface traffic in the area.
There was one very nice yacht that pulled away from its dock and made a bee line for the exit to the protected port. As soon as it broke cover it was spotted by the USS Cole (DDG-67) which took up pursuit.
"Montecello this is the United States Destroyer USS Cole, you will power down and we will come along side you. Should you not comply you will be sunk. If you do not respond to this message you will be sunk. Awaiting your decision. Over."
"USS Cole, this is Montecello, we are a civilian vessel in Mexican territorial waters. You have no authority here. Over."
"Montecello, just in case you have not figured it out, the United States and Mexico are at war and this port is now under a blockade. You will heave to or you will become a fish habitat. You have 1 minute to comply before we cut you in half. Over."
"Commander, the gun crew has reported manned and ready!"
"Very well, have them aim for the forestem and put a shot through it on my mark."
After a minute, the Montecello had not complied. "5 inch Gun crew, you may fire when ready."
The round took out the first six inches of the forestem. It was just gone in a shower of shrapnel that hit the sea on the other side of the cruise ship with a cone of debris.
"USS Cole! Cease fire! Cease fire! We are a civilian vessel!"
Montecello, this is the USS Cole, if you look out your starboard window you will see the 6 inch gun is now targeting you amidships with a high incendiary round which will likely cause your fuel to ignite and incinerate your crew. You have 30 seconds to power down before we fire. Over."
The Montecello cut her engines and was boarded. On board was one of the lieutenants of one of the crime families and he was taken into custody, the yacht impounded, and piloted back to port. Her crew were dismissed and a naval crew took over with Captain HL and his XO having crews work up the communications suite and repairing the forestem so they could take temporary residence during the blockade.
****