<P> Jackson, who was pro-Confederate, was disappointed with the outcome . He called up the state militia to their districts for annual training . Jackson had designs on the St. Louis Arsenal, and had been in secret correspondence with Confederate President Jefferson Davis to obtain artillery for the militia in St. Louis . Aware of these developments, Union Captain Nathaniel Lyon struck first, encircling the camp, and forcing the state militia to surrender . While his troops were marching the prisoners to the arsenal, a deadly riot erupted (the Camp Jackson Affair). </P> <P> These events resulted in greater Confederate support within the state among some factions . The already pro-Southern Missouri State Legislature passed the governor's military bill creating the Missouri State Guard . Governor Jackson appointed Sterling Price, who had been president of the convention, as major general of this reformed militia . Price, and Union district commander Harney, came to an agreement known as the Price--Harney Truce, which calmed tensions in the state for several weeks . After Harney was removed, and Lyon placed in charge, a meeting was held in St. Louis at the Planters' House among Lyon, his political ally Francis P. Blair, Jr., Price, and Jackson . The negotiations went nowhere . After a few fruitless hours, Lyon declared, "this means war!" Price and Jackson rapidly departed for the capital . </P> <P> Jackson, Price, and the pro-Confederate portions of the state legislature were forced to flee the state capital of Jefferson City on June 14, 1861, in the face of Lyon's rapid advance against the state government . In the absence of most of the now exiled state government, the Missouri Constitutional Convention reconvened in late July . On July 30, the convention declared the state offices vacant, and appointed a new provisional government with Hamilton Gamble as governor . President Lincoln's administration immediately recognized the legitimacy of Gamble's government, which provided both pro-Union militia forces for service within the state, and volunteer regiments for the Union Army . </P> <P> Fighting ensued between Union forces and a combined army of General Price's Missouri State Guard and Confederate troops from Arkansas and Texas, under General Ben McCulloch . After a string of victories in Cole Camp, Carthage, Wilson's Creek, Dry Wood Creek, Liberty and going up as far north as Lexington (located in the Missouri River Valley region of western Missouri), the secessionist forces retreated to southwestern Missouri, as they were under pressure from Union reinforcements . On October 30, 1861, in the town of Neosho, Jackson called the supporting parts of the exiled state legislature into session, where they enacted a secession ordinance . It was recognized by the Confederate Congress, and Missouri was admitted into the Confederacy on November 28 . </P>

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