WARNING: These images may contain graphic/objectionable content.

Aleppo is the largest city in Syria and used to be the city with most inhabitants per square km. Ever since the 2012 Syrian Civil War began, though, things have changed. Today, Aleppo is no longer a city; it is a battlefield.

International photographers have been documenting the events, the locals, the fights, the sadness that surrounds this war site ever since it has begun. Today, Life in Photos introduces you to a shocking world of war: Aleppo.

Locals are running away from an explosion started at an oil shop on October 20^th, 2013. The fire was probably caused by a bullet fired by a professional sniper loyal to the Syrian President.

Photo: Al-Halabi/Reuters

A still image from a video taken on August 17^th, 2016, shows a young boy covered in smog and blood waiting to be taken care of in an ambulance. The child had just survived an airstrike.

Photo: Reuters TV/Reuters

A damaged street has sandbags used as a barrier in the Saif al-Dawla district on March 6^th, 2015.

Photo: Hosam Katan/Reuters

The body of a 7-year-old boy shot by a Syrian Army sniper is brought at the Dar Al Shifa hospital of Aleppo.

Photo: Manu Brabo/AP

Locals are walking nearby 3 upright buses placed as barricades on a street. The buses are used for protection against snipers loyal to the Syrian President Bashar al-Assad. The barricades were created by the rebel-controlled Bustan al-Qasr neighbourhood on March 21^st, 2015.

Photo: Ammar Abdullah/Reuters

Two young girls who survived a supposed ground-to-ground missile attack started by the Syrian president’s forces are holding hands at the Bab al-Hadeed district on April 7^th, 2015.

Photo: Abdalrhman Ismail/Reuters

An Air Force fighter jet launches its first missile towards the El Edaa district of Aleppo on September 1^st, 2012.

Photo: Youssef Boudlal/Reuters

A couple of locals are inspecting their previous houses, now severely damaged, in the neighbourhood of Bani Zeid. The area was a rebel-held district until the Syrian government forces regained control over it on July 29^th, 2016.

Photo: George Ourfalian/AFP/Getty

A Syrian boy who was suffering from breathing difficulties treats himself at a make-shift hospital following several barrel bombs dropped on the rebel-held neighbourhood of Sukkari on September 6^th, 2016.

Photo: Thaer Mohammed/AFP/Getty

Massive amounts of smoke billow after several air strikes on the rebel positions of Aleppo on August 18^th, 2016.

Photo: George Ourfalian/AFP/Getty