Answer:
The United States of America
Step-by-step explanation:
The treaty of Guadalup Hidalgo resulted in the loss of half of Mexico territory, as large states like New Mexico, Texas and California came to form part of the Federal Union. The treaty of Guadalupe marks the end of the war between Mexico and the US in 1848, that had begun with the declaration of Independece of Texas , supported by the US. The conflict had devastated the neighbouring country, so fininancial compensation was also added to pay for the damage caused by the war.
The states like New Mexico had been badly recieved administration from a centralized state as Mexico city was unable to control territories to the north and the south. Together with the expansionist policies of a growing US economy they made conditions for grantinig these territories as settlers from North America had been in the northern states seeking to join the Federal Union.