Makeshift tents for Syrian refugees are seen in the Lebanese Beqaa valley.
European Union Humanitarian Aid Commissioner Kristalina Georgieva has warned that Syria is facing “the most disastrous humanitarian crisis in decades.”
"One thousand days of violence which has resulted in tens of thousands of men, women and children losing their lives, millions being displaced in the country and beyond its borders in search of safety," said Georgieva on Sunday.
"One thousand days of death, fear, hardship, deprivation and despair. One thousand days in which we are witnessing the creation of a lost generation," she added.
According to United Nations (UN), more than 100,000 people have been killed and millions displaced in the violence.
The United Nations High Commissioner for Refugees (UNHCR) has announced that the number of Syrian refugees, who have fled to neighboring countries, has passed the three million mark.
Georgieva also spoke of an upcoming conference on the crisis in Syria, to be held on January 22 in Geneva, saying her hopes are “pinned” on the talks.
"In the meantime, I continue to reiterate my plea, and that of the entire international humanitarian community, for the parties involved in this terrible conflict to facilitate humanitarian access to all those in need," said Georgieva.
The Geneva II conference, which will be a follow-up to an earlier one held in June 2012, had been proposed by Moscow and Washington on May 7, but its date was delayed several times.
The deadly unrest in Syria began in 2011, with reports indicating that the Western powers and their regional allies -- especially Qatar, Saudi Arabia, and Turkey -- are supporting the militants operating inside the country.