Neutral soil. The Neutral Quarter along the U.S. border with Spanish Texas was created as a place where the military of both countries would engage. After the purchase of Louisiana in 1803, the United States and Spain were unable to agree on the Louisiana-Texas border. And who got the neutral agreement on soils? On November 5, 1806, to avoid an armed confrontation, General James Wilkinson and Lieutenant-Colonel Simin de Herrera, the American and Spanish military commander, reached an agreement that made the disputed area neutral ground. On that day, in 1806, the United States and Spain signed an agreement establishing neutral soil. After the purchase of Louisiana in 1803, the United States and Spain were unable to agree on the Louisiana-Texas border. To avoid an armed collision, General James Wilkinson and Lieutenant-Colonel Simin de Herrera, the American and Spanish military commanders, reached an agreement in 1806 that made the disputed area neutral ground. Neutral soil boundaries have never been officially described beyond a general statement that the Arroyo Hondo to the east and the Sabine River to the west should serve as boundaries. Ownership of the band was attributed to the United States by the Adams-Ons Treaty in 1821. Therefore, until 1821, the Neutral Ground existed outside the government of the United States or Spain.
 Although the agreement stipulated that no settlers should be allowed in neutral soil, settlers moved from Spanish and American territory.  The neutral land agreement did not provide a solution to the border issue, either to the United States or Spain. At best, it mitigated the situation. But in the absence of an international treaty, it has served all parties involved. In the broader context of relations between nations, the compromise provided an exceptional and valuable insight into the unique role played by the Louisiana-Texas border regions in reshaping political and diplomatic practices. Far from the seats of power, the leaders of both sides of the Sabine broke with the convention to find a peaceful solution to a number of critical issues in a situation where normal diplomatic channels have failed. By concluding the agreement as they, Wilkinson and Herrera e., also for practical reasons, all American efforts, Texas as part of the Louisiana Purchase by moving the center of gravity of the negotiations from the Rio Grande to the Sabine. The most important thing is that both the United States and Spain have accepted the agreement that served to restart diplomatic talks between the two sides. In a very real sense, local diplomacy triumphed where international diplomacy failed and provided unique solutions to a complex set of problems on the frontier of empires, with Spain and the United States grappling with a changing paradigm in which neither had undisputed control.
Local officers from Spain and the United States agreed to temporarily leave the neutral Enzis outside the jurisdiction of one of the two countries. The territory of western Louisiana today had a neutral status from 1806 to 1821.   Recognizing that the circumstances are serious, and yet understand that the solution required diplomatic finesse, the Governor of Texas, Manuel Salcedo, wrote to Justice of the Peace John Carr in Natchitoches, and proposed a joint effort by the two nations to evacuate the neutral ground of all unauthorized persons. Carr J.A., a civilian judge, found the idea attractive, but deferred the decision to William C.C.