By 2186 CE and the onset of the Reaper War, it possessed nine dreadnoughts and was divided into at least eight fleets. The Alliance Navy possessed over 200 vessels as of the First Contact War in 2157 CE, including several dreadnoughts, and was divided into at least two fleets. While the Navy stations only use token garrisons to guard Alliance colonies, its strength is centered upon powerful fleets stationed at mass relay nexuses that can rapidly respond to any colony under attack. The Navy is a space combat force primarily charged with protecting human colonies, space stations, and mass relays. “There won't be an Earth left to save.” - Spoilers for Mass Effect 3 follow.
