After the War of 1812, the island did not see much development. Rather, it was used for garrisoning troops starting 1821. The troops garrisoned on the island were deployed to wars four times in the rest of the 19th century. The New York Arsenal, a military division that dealt with artillery and was separate from the Army, moved to the island in 1832 and started constructing an armory building three years later. Construction of structures for the Arsenal continued for several decades. To distinguish the Arsenal's and the Army's structures, the former's buildings were designed in the Greek Revival style, such as the Admiral's House built in 1843.