 Complete the following phrase:  The poem was a result of events at the beginning of the Civil War. During the secession crisis, U.S. President Abraham Lincoln referred to in the poem as the despot and the tyrant ordered U.S. troops to be brought to Washington, D.C., to protect the capital and to prepare for war with the seceding southern states. Many of these troops were brought through Baltimore City, a major transportation hub. There was considerable Confederate sympathy in Maryland at the time, as well as a large number of residents who objected to waging a war against their southern neighbors. Riots ensued as Union troops came through Baltimore on their way south in April 1861 and were attacked by mobs. A number of Union troops and Baltimore residents were killed in the 