After the Sergeants' Revolt on September 4, 1933 and the proclamation of sergeant Fulgencio Batista as the new Army Chief of Staff, replacing Julio Sanguily Echarte, the higher ranking army officials (such as captains, colonels, and generals) refused to recognize this proclamation.
Suffering from a hemorrhaging ulcer in his stomach at the time, Sanguily would rest at the Hotel Nacional de Cuba.
In addition to Sanguily, the United States ambassador, Sumner Welles was also staying at the Hotel Nacional de Cuba.
They refuse to leave the hotels since they state that it is the only place open to them in Habana, which can be readily defended.
These advantages were reflected in the battle, that after 11 hours of fighting conservative casualties place the number of soldiers dead at least 30, whereas only 2 army officials were killed in the brawl.