Which accurately describes a letter during the time a historical event occurred

explanation: j

to act quickly in times of danger to the united states

because you have to act quickly if you want to live/survive.

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.