July 1, 1998
With North Korean People's Army support, the Soviet 194th Motor Rifle Division, reinforced by the 203rd Air Assault Brigade, crosses the DMZ and forges south.
Unofficially,
effects
American bombers and missiles fan out in the early morning hours, carrying out the Joint Chief's orders to use nuclear weapons to slow or halt the Mexican invasion. A B-1B from the 337th Bomb Squadron takes off from its dispersal base (Altus Air Force Base, Oklahoma), heading for Mexico City with a pair of B-61 bombs aboard. As it crosses the border over Big Bend National Park at low level and Mach 1, the 214th Field Artillery Brigade, evacuated from White Sands Missile Range in New Mexico to Cannon Air Force Base, New Mexico launches a pair of Pershing II Intermediate-Range missiles at the railyards at Los Mochis and Torreon. Meanwhile, F-16s from the 388th Tactical Fighter Wing head for the Mexican cities of Saltillo and Monterrey, to strike railyards hubs near those cities. The B-1B arrives over Mexico City after the rail strikes have occurred, striking the Ministry of Defense building with one of the bombs. The bomb is set for 0.3 kT, enough to flatten the building but not enough to start a firestorm or create massive damage on Mexico's largest city. The Pershing II and F-16 strikes, all ground bursts, are higher yield in order to ensure the destruction of the railyards. (The steel rails, heavily anchored and only centimeters above the ground, are particularly resistant to blast and thermal damage; a ground burst vaporizing the rails as it forms a crater is the surest way to ensure destruction.)
The Mexican Navy's Pacific Fleet sorties from its forward base in Ensenada, ordered to drive off the American destroyer USS John Paul Jones and interdict the San Diego battle zone. The Mexican task force is built around two Second World War-era American destroyers, which have been meticulously maintained but are running low on fuel.
The final surviving member of the 1048th Assault Gun Regiment's ill-fated raid into II MEF's rear area in northwestern Poland is finally killed by US Marines as he shelters in a dugout underneath his disabled ISU-152 assault gun.