Free Syrian Army fighters cautiously move inside a building during a series of clashes with soldiers loyal to the regime. Aleppo, Syria. October 4, 2012.

In the contested neighborhood of Izaa, FSA fighters defend their positions during a firefight with the Syrian Army. Aleppo, Syria. September 25, 2012.

In a rebel held neighborhood civilians carry the body of a wounded man inside one of Aleppo’s last standing hospitals. Aleppo, Syria. October 20, 2012.

A Free Syrian Army fighter wounded along one of Aleppo’s front lines is rushed to a field hospital. Aleppo, Syria. September 30, 2012.

A severely wounded rebel fighter is carried on a stretcher inside one of Aleppo’s hospitals. Aleppo, Syria. September 30, 2012.

Due to a lack of medical supplies and hospitals, most wounded civilians are treated in make-shift facilities and in extremely poor sanitary conditions. Aleppo, Syria. October 2, 2012.

A young girl is medically treated for shrapnel wounds. Aleppo, Syria. September 29, 2012.

Wounded FSA fighters from Salahdeein's front-line are treated in Aleppo's main hospital. The small and unequipped staff treats an average of thirty wounded civilians and rebel fighters a day. Aleppo, Syria. September 28, 2012.

A wounded child awaits treatment in one of the few standing hospitals situated in the northern Syrian city of Aleppo. Aleppo, Syria. October 3, 2012.

A Free Syrian Army fighter holds the hand of a wounded comrade inside of Dar al-Shifa hospital. Aleppo, Syria. October 1, 2012.

In Aleppo, the body of a severely wounded civilian is carried outside of Dar al-Shifa's hospital to be transported to Turkey where he can receive the proper medical treatment necessary to save his life. Aleppo, Syria. October 24, 2012.

The body of a wounded civilian is escorted to a hospital in the city of Aleppo. Aleppo, Syria. October 4, 2012.

In Aleppo death and grief are part of the daily life as the soldiers loyal to the regime continue their military campaign to regain control of the city of Aleppo. Aleppo, Syria. October 3, 2012.

A Free Syrian Army fighter observes the damage and smoke rising from a civilian neighborhood after being targeted by a Syrian Army artillery strike. Aleppo, Syria. October 26, 2012.

A member of the FSA quickly moves to another building to find cover during a firefight with Bashar Al Assad's soldiers. Aleppo, Syria. October 2, 2012.

In Bustan Al Basha, a FSA fighter runs on a road to avoid the scope of regime snipers. Aleppo, Syria. October 21, 2012.

FSA fighters attempt to save the life of a civilian severely wounded by a Syrian Army sniper along one of Aleppo's front lines. Aleppo, Syria. October 21, 2012.

A wounded member of the Free Syrian Army is carried to Dar al-Shifa, Aleppo’s rebel held main hospital. Aleppo, Syria. October 19, 2012.

Father and son, survivors of an aerial attack, await medical treatment in one of Aleppo's last functioning hospitals. Aleppo, Syria. October 4, 2012.

A civilian lays on a hospital bed after receiving life threatening wounds during a Syrian Army airstrike in the neighborhood of Kastel Harami, one of Aleppo’s contested neighborhoods Aleppo, Syria. September 29, 2012.

In Aleppo, a wounded child holds the hand of his father after being treated by the small staff of a medical facility. Aleppo, Syria. September 30, 2012.

The body of a FSA fighter lays lifeless in the trunk of a van outside of Dar al-Shifa hospital. Aleppo, Syria. November 1, 2012.

FSA fighters and civilians carry the dead body of a comrade to a make-shift cemetery along one of Aleppo’s front lines. Aleppo, Syria. March 21, 2013.

In Salahadeen, one of Aleppo's front lines, a FSA fighter mourns the death of a comrade. Aleppo, Syria. March 21, 2013.

Civilians stand on top of the rubble of a building destroyed by the Syrian Army’s artillery rounds. Aleppo, Syria. March 19, 2013

Civilians rush to the scene of a regime airstrike. Aleppo, Syria. March 21, 2013.

In Aleppo, Al Sukary’s neighborhood civilians react to a regime airstrike and search for survivors under the rubble. Here a civilian in critical condition is rushed to a make-shift hospital. Aleppo, Syria. March 20, 2013

An abandoned ambulance sits in the neighborhood of Moshed, one of Aleppo's liberated areas and a stronghold of the Free Syrian Army. Aleppo, Syria. March 26, 2013.

Free Syrian Army fighters walk the abandoned streets of Aleppo. Aleppo, Syria. October 26, 2013.