Greater Texas, officially the Southwestern Union, is an autocratic government in the former American states of Texas, Oklahoma, and New Mexico. It also claims to have parts of Arizona and Midwest. Texas shares a border with Arizona to the west, United States in the north, and the Southern Confederation in the east. Texas has a population of around  million people.
Russo-American Nuclear Exchange
Within the hours following the Russo-American Nuclear Exchange on January 1st, 2009, Texas Governor Rick Perry declared a state of emergency, mobilizing the Texas Army National Guard, the Texas State Guard (TXSG), and the Texas Air National Guard (TX ANG). Looting, murder, and crime ran rampant in the major cities following the chaos of what the Texans call the "Russkie Exchange". Governor Rick Perry deployed the TXSG to Houston, and the Texas Army National Guard to Dallas in an attempt to quell riots and massive looting within the cities. San Antonio remained fairly untouched as Lackland was able to defend itself and suppress the surrounding area through threats of force.
Refugees from the Midwest and Southeast flooded towards Texas, while the steady flow of Mexican immigrants increased in the post-war chaos causing Governor Perry to declare a militarized border be established between Texas and Mexico, on January 30th, preventing any further immigrants from coming into, what he declared, "the rightful US successor." Attempts to contact the chain of succession for the remnants of the US failed, and Texas began trading and forming pacts with its nearby neighbors of Oklahoma, New Mexico, Louisiana, and Arkansas. Martial law was never declared, for the fear of the amount of armed citizens resisting the military would be seen as high.
Secession and Independence
February remained a somewhat consistent month, with the National Guard units standing ready on the border to meet and clash with immigrants who now either stopped coming, or came looking for a fight to get across. Skirmishes slowed to almost a stop in mid-February, as word had spread to the would-be immigrants that the Texans had stood to fight. Army, Navy, and Air Force units stationed in Texas began to co-operate with the provisional government ran by Governor Perry, and by the end of February, all units stationed in Texas pledged their service to the Lone Star Republic.
When March 2nd came, Governor Perry requested an emergency meeting within the Texas assemblies and the remaining legislators met within Dallas to establish and inform everyone of the state of their position. Grain supplies were running pitifully low and were expected to be out shortly. The military was demoralized with most of the US seen as unreachable, and no real leader other than the separate leaders of the states. Refugees were still incoming, although they had been severely diminished following the rumors of Texan citizens chasing off foreigners and the military shooting immigrants. In a unanimous vote, all members voted for secession from the United States and elected Perry to President.
On March 5th, President Perry announced the Republic Defense Act, which merged the Army National Guard, Texas State Guard, and other Army units within the state as the Republican Guard, the Air Force and Air National Guard units into the Republican Air Force, and the small Naval units into the Republican Navy. These units fell under the newly created Department of Defense.
Texas needed food like the rest of the US, but it had things to trade unlike a majority of its counterparts. Texas had lots of oil and natural gas that it could spare, having no other ties to trading other than Oklahoma and New Mexico, Texas needed to open up. President Perry issued a formal apology to the leader of Mexico, but the request for foodstuffs was denied. Applying for help from the world Food Programme, Texas received pledges of grain and other products from the EU, having maintained a notable European military populace in neighboring states, little recognition came from Japan and China, but the Chinese pledged to spare any rice for the Texans.
Solving the food crisis, Texas now needed to solve its economy. On the 7th, President Perry announced the Ensured Economy Act, which made the official currency of Texas the Bill of Texas, and based its monetary value off of labor, since that was worth more than the US dollar. This act also created the Deparment of the Treasury, which was given authorization and broad powers to create large public work projects and agricultural infrastructure to support the Texans' primarily meat diet and to stimulate the stagnant economy created by the new currency. Large amounts of labor and money were put into finishing the Roscoe Wind Farm, as well as the development of large solar farms to help with a renewable energy source, as well as to allow more petroleum to be traded off.
Plans were set in place by President Perry to establish alliances and pacts with nearby states. In April, Perry personally visited with the reigning leaders of New Mexico and Oklahoma, establishing the Tri-State Alliance, and in the case of formal succession becoming recognized, the Southwestern Union. Seeing Texas becoming successful despite the chaos, the two governors of Oklahoma and New Mexico seceded from the US after Texas, and established the Southwestern Union.
After meeting with the Governors of Arkansas and Louisiana post-secession, it was clear to Perry, the Texas Assembly, and the Governors of Oklahoma and New Mexico that the Southern Confederation would not be negotiable and apply a more radical approach to their populace, possibly even going so far as to enable slavery. In secret, President Perry ordered the power to Louisiana and Arkansas to be stopped. Following an energy shortage that was unexplained, the two Governors appealed to President Perry after three weeks of little power, in which President Perry ordered the movement of the-now Union Guard units to each of the borders.
The two Governors appealed to Perry, and when their outrageous demands were declined, Perry declared that they were to be "liberate the oppressed peoples of Arkansas and Louisiana, at any cost." The Second War Over Slavery had begun as soon as the first brigade of the Republican Guard had crossed the border, with a formal declaration reaching the office of the two Governors at .
The Government of the Southwestern Union, like that of its member nations(Texas, Oklahoma, New Mexico), is divided into three branches - the executive, consisting of the President, his cabinet, and other constitutionally elected and appointed officers and offices; the legislative, consisting of the Union House and the Union Senate; and the judicial, consisting of the Union High Court and lower courts. State governments exist for the three states.
Texas has a well developed oil and agricultural field, being the largest refiner of oil and having 1/4th of the amount of identified oil in the US. It is second to none in the amount of farms and cattle in the United States, although these numbers are struck down by droughts in the years. It currently leads, despite the shattered infrastructure of the United States, in energy production, exporting power to other secessionist countries and the US itself. It also has an established mining sector, but these do not include major deposits of iron, instead it is uranium and other rare resources.
In regards to communication and aerospace, there is a large Lockheed Martin facility that produces the venerable F-16 and Bell Helicopter is headquartered in Fort Worth, Texas near the other facility. AT&T has large investments and is headquartered in Texas before the war, so Texas has a stable communications network, but also has access to the satellites previously established by NASA from the Mission Control Center located in Houston, which can be used to locate units, spy on other secessionist states, and are a powerful leverage tool along with its power production.
The Union Armed Forces are divided into three branches - the Guard, the Union Navy, and the Union Air Force. The Guard is the largest of the three branches and keeps growing - in 2011 60% of all new enlisted/conscripts were Guard recruits. The Navy is small, under-staffed, and under-funded; the miniscule Gulf patrol force mainly is limited to small incursions into Southern Confederation waters as well as escorting convoys in and out of Texas. The Texan government is currently in talks with California on possibly acquiring larger hardware for the defense of the Gulf and possibly going toe-to-toe against the Southern Confederation.
The Guard currently has a force of active  personnel - this translates into  infantry brigades,  armored brigades, and assorted support assets. The Guard operates all US Army equipment, with a large order to recall the UCP fatigues and replacing these with M81 and three-color desert used in the Invasion of Iraq.
The Air Force's fighter force consists of two F-22 squadrons of 21 aircraft each, and two F-16C/D squadrons of 21 each. In terms of logistical aircraft, the Union has large amounts of trainer aircraft, and smaller amounts of mission-oriented aircraft such as AC-130s, C-17, and KC-135Rs operated in New Mexico and Oklahoma, respectively. In regards to rotary-wing aircraft, the inventory is rather diverse and large; Blackhawks, Hueys, and Ospreys to name just a few.
Most of the military's current equipment was inherited from various National Guard units, Army depots, and Air Force bases based in Texas, Oklahoma, and New Mexico. Vehicles used are the M2/M3 Bradley IFV, M1 Abrams, Humvees, and others, including surplus brought out of arsenals.