Final answer:
This question is about the leaders who led columns into a city during a historical event.
Step-by-step explanation:
The subject of this question is History. It pertains to a historical event where leaders led columns into a city. The leaders in this case are General John Burgoyne, Colonel Barry St. Leger, General Sir Henry Clinton, Montgomery, and Arnold. These columns were part of a military campaign during the American Revolution. However, one of the columns failed to arrive at its destination due to various circumstances such as the engagement of British forces with American forces, lack of support from Indians, and delays caused by difficult terrain.