Higher levels of production and economic growth for the country.
They fought for home and had a home-field advantage. They also had knowledge of the area. They had the french on their side.

King Otto l was was German king from 936 and Holy Roman Emperor from <em><u>962</u></em> until his death in <em><u>973</u></em>. He was the oldest son of Henry I the Fowler and Matilda.
Otto inherited the Duchy of Saxony and the kingship of the Germans upon his father's death in 936. He continued his father's work of unifying all German tribes into a single kingdom and greatly expanded the king's powers at the expense of the aristocracy. Through strategic marriages and personal appointments, Otto installed members of his family in the kingdom's most important duchies. This reduced the various dukes, who had previously been co-equals with the king, to royal subjects under his authority. Otto transformed the Roman Catholic Church in Germany to strengthen royal authority and subjected its clergy to his personal control.
Father -- Henry the Fowler
Mother -- Matilda
<span>Religious beliefs have
highly influenced the political and hierarchical structures in both Ottoman and
Safavid Persia empires. Although both states were of Islamic religion, they
belonged to different branches, Sunni and Shia. These branches differ over the
choice of Muhammad's successor, which subsequently acquired broader political
significance, as well as theological and juridical dimensions. Sunni Muslims
believed that Muhammad didn’t clearly appoint a successor, which is why there
isn’t hereditary succession law in Ottoman Empire. This contrasts with the Shia
Muslims view, which holds that Muhammad appointed his son-in-law and cousin Ali
ibn Abi Talib to succeed him. They believed that the empire should be led by
direct successor of Muhammad’s line. Differences between these two branches
affected the politics, as Shia Muslims weren’t religiously tolerant to other
confessions and considered them for heretics, even the other branches of Islam.
This resulted in the besieged of Bagdad, which was followed by the massacre of
a large part of its Sunni Muslim inhabitants, as it was endeavored to transform
Baghdad into a purely Shiite city. The besiege of Bagdad was the event that led
to the Ottoman-Safavid war (1623–1639).</span>
The issue of whether to permit slavery in the territories organized in this new land consumed Congress at the end of the 1840s. During the war, Congressman David Wilmot introduced the Wilmot Proviso, a proposal to ban slavery in any new territory acquired from Mexico. The measure passed in the House of Representatives but failed in the Senate.
Congress was also seeking resolutions for several other controversial matters. Antislavery advocates wanted to end the slave trade in the District of Columbia, while proslavery advocates aimed to strengthen fugitive slave laws. But the most pressing problem was California: the many emigrants who had flocked to the territory upon the discovery of gold in the late 1840s had forced the question of its statehood and status as a slave or free state.
The presidential election of 1848 determined which of these issues would be tackled first.
There would be Major conflict at first but as I understand it would be resolved