Eight years into the Syrian crisis, Lebanon remains at the forefront of one of the worst humanitarian crises of our time and has shown exceptional commitment and solidarity to people displaced by the conflict in Syria. As of October 2018, the Government of Lebanon (GoL) estimates that the country hosts 1.5 million Syrians who have fled the conflict in Syria (including 950,3341 registered as refugees with UNHCR, of which 25.2% are women, 19.4% men, 27.1% are girls, 28.3% are boys with diverse backgrounds and specific needs), along with 28,800 Palestinian refugees from Syria (PRS) and a preexisting population of an estimated 180,000 Palestinian refugees from Lebanon (PRL) living in 12 camps and 156 gatherings. The vulnerabilities of each of these groups have different root causes, requiring the overall response strategy to include a multifaceted range of interventions, from emergency aid to development assistance. Nearly half of the Lebanese, Syrian and Palestinian populations affected by the crisis are children and adolescents. Up to 1.4 million children under 18 years of age are currently growing up at risk, deprived, and with acute needs for basic services and protection. Public services are overstretched, with demand exceeding the capacity of institutions and infrastructure to meet needs.