Describe a situation in which a state governor might ask for federal troops to be sent to his or her state . How would this situation be an example of responsibility that the federal government owes to the state ? ( need answer asap !! )

Cherokee  removal, part of the trail of tears, refers to the  forced  relocation between 1836 and 1839 of thecherokee  nation from  their lands ingeorgia, south carolina, north carolina, tennessee, texas, and alabama to the indian territory (present day oklahoma)  in  the thenwestern united states, and the resultant deaths