The president most responsible for obtaining the lands of california, oregon, and new mexico for the united states was? a. thomas jefferson b. martin van burden. c. james k. polk. d. john tyler

The president most responsible for obtaining the lands of California, Oregon, and New Mexico for the United States was James K. Polk. Option C is correct.

James Knox Polk was the 11th president of the United States. Prior to his presidency, he was speaker of the House of Representatives and governor of Tennessee. He belonged to the Democratic Party and was an advocate of Jacksonian democracy. During Polk's presidency, the United States expanded significantly with the annexation of the Republic of Texas, the Oregon Territory, and the Mexican Cession following the American victory in the Mexican–American War.

the big stick policy was to still look powerful, and be nice at the same time. the big stick policy was also to countries who were at war, find peace with eachother.

the dollar diplomacy was to expand american business and get it to latin america, for that would be good for the economy.

you my friend, your regards.

agubaba khaleekha.

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation: