US Military Sealift Command Mercy class Hospital Ship going east past Fort Monroe Hampton VA.
She is based at Norfolk Naval Station and maintained on 5 day activation status. Most of her medical staff would come from the nearby Naval Hospital in Portsmouth VA. Class leader and sister ship USNS Mercy is maintained in similar status on the west coast at San Diego CA.
She is registered as a hospital ship under the Geneva Status and to attack her would be considered a war crime. Due to this she is unarmed and Naval personnel with "combat" specialties cannot be assigned to her.
She entered service with the US Navy (her owner, the MSC operates her) in 1987 after being converted from the tanker ROSE CITY. She is nearly 900 feet long and has a top speed of 17.5 knots (about 20 mph).
She can care for up to 1000 patients (including 20 in surgical Recovery & in 80 intensive care) and has 12 Operating Rooms.
Deployments she has gone include the Persian Gulf (1991) Operation Desert Shield/Storm, Haiti (1994) Refuge Crisis, New York (2001) WTC 9/11 attacks, Persian Gulf (2003) Iraq Invasion, US Gulf States (2005) Hurricane Katrina, Central & South America Goodwill (2007), Haiti (2010) Earthquake, and Central & South America Goodwill (2011).
http://www.navsource.org/archives/09/12/1220.htm
https://www.navysite.de/ships/comfort.htm