The rail road brought several advantages to the north it helped get supplies to those who needed it it was also a way to transport soldiers
The British Army sustained many casualties.
John C. Frémont settled in Salinas to accompany the annexation of California and then went south to support John D. Sloat.
John Charles Frémont (1813 - 1890) was an American military man who stood out for participating in the annexation of California to the United States and for being the first candidate for the presidency of the United States presented by the Republican Party in its history.
The process for the annexation of California to the United States began in December 1845 when John Frémont entered the Mexican province of Alta California (State of California) accompanied by 60 men under his command.
This incursion had the endorsement of the Mexican authorities because the Americans had argued that they were going with the intention of making a scientific and topographical expedition.
However, Frémont was in charge of encouraging and advising American citizens living in that territory to separate from Mexico to become part of the United States.
This incursion caused the crisis in this region to begin in 1846 because the citizens of this region wanted to become independent from Mexico. Subsequently, on June 14, 1846, the Republic of California was declared, and 25 days later they were annexed to the United States Government.
At that time Fremont was established in the Salinas Valley. Once he learned that he had support in the city of Monterrey (further south of Valle de Salinas) he went there and put himself at the disposal of John D. Sloat but he rejected it.
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Answer: Rutherford B. Hayes
Explanation: