The first person to raise the flag of revolt was

Emboldened by Fremont's encouragement, on June 14, 1846, a party of more than 30 Americans under the leadership of William Ide (1796-1852) and Ezekiel Merritt invaded the largely defenseless Mexican outpost of Sonoma just north of San Francisco.Sep 9, 2020

Explanation:

the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.

syria

tens of thousands of people were killed in as it’s longtime leader attempted to stay in power.