New Mexico is a state and no territory was gained from them.
In the Compromise of 1850, the Mexican Cession territory (excluding California) was to become New Mexico and Utah. Their slave situations were to be determined using popular sovereignty, or the power of the votes of the people to decide if it would be a slave state or not. In addition, the Compromise of 1850 also gave the disputed territory between Texas, a slave state, and New Mexico to New Mexico. This invalidated the previous compromise, the Missouri Compromise, which banned slavery in North of 36 in newly gained territory.
The plan to ban slavery in the territory gained from Mexico was largely encapsulated in the Wilmot Proviso, introduced by Congressman David Wilmot in 1846. This proposal sought to prohibit slavery in any territory acquired from Mexico as a result of the Mexican-American War. Although the Wilmot Proviso passed in the House of Representatives multiple times, it was ultimately rejected by the Senate, highlighting the deep divisions over slavery in the United States at the time. The failure of the Proviso contributed to the increasing tensions that would lead to the Civil War.
John C. Calhoun.
The northerners protests DouglasÕs plan to repeal the Missouri Compromise because it would have made slavery legal in the northern territories. The Missouri Compromise had outlawed slavery in territories and new states above the Missouri Compromise line.
Henry clays plan
The solution that preserved the balance between slave and free states while allowing slavery to expand into new territories was the Compromise of 1850. This plan was also known as the Clay Compromise, named after its main proponent, Senator Henry Clay. It included provisions such as admitting California as a free state, allowing popular sovereignty in the territories of New Mexico and Utah, and strengthening the Fugitive Slave Act.
The Wilmot Proviso (1846) prohibited slavery on any land acquired from Mexico.
Stephen Douglas's plan, particularly through the Kansas-Nebraska Act of 1854, effectively undid the Missouri Compromise by allowing the territories of Kansas and Nebraska to decide for themselves whether to allow slavery through the principle of popular sovereignty. This approach contradicted the Missouri Compromise, which had prohibited slavery in those territories north of the 36°30′ parallel. As a result, the act reignited sectional tensions and led to violent conflicts, known as "Bleeding Kansas," as pro-slavery and anti-slavery settlers rushed to influence the territories' decisions.
The solution was, to divide Clay's plan into a series of measures that Congress could vote on separately
Israel gained a number of territories in the Galilee Region, near to the Gaza Strip, West Jerusalem, and in Judean Highlands. This particular linked map, shows the territories gained by Israel in the war in pink and grey.
Lincolns plan was to abolish slavery!
When Mexico won its independence from Spain in 1821, all the territories it possessed included Mexico, most of Central America (Belize, Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica and Panama) as well as today's US States of California, Nevada, Utah, Texas and parts of Colorado, Arizona, New Mexico, and Wyoming. Due to the extremely low population for such territorial extension (estimated at 12 million during 1824), Mexico relaxed its immigration policies, thus allowing American settlers to help populate the northern territories. The conditions to settle were simple: 1) to pledge allegiance to Mexico and 2) observe the Mexican Law and customs. In 1830, these laws incorporated the banning of slavery.