Simplify the following text for a Grade 7 native English-speaking person.
Original: In January 1811 , Spanish forces fought the Battle of the Bridge of CalderÃ n and defeated the insurgent army , forcing the rebels to flee towards the United States-Mexican border , where they hoped to escape .
Simplified: In January 1811 , Spanish forces fought the Battle of the Bridge of CalderÃ n and the peasant army lost . It made the rebels flee towards the United States-Mexican border , where they hoped to escape .