(VOA News) – Last year, humanitarian aid workers in the Central African Republic were involved in more than 365 security incidents — more than Syria, Afghanistan, Iraq and Somalia. The security challenges in the C.A.R. make it difficult for aid workers to stay safe and to deliver much needed aid. About 2.2 million people here — nearly half of the population — are in need of humanitarian assistance. In Bambari, a flashpoint in the country, fighting involving rival armed groups has displaced about 10,000 people in the past month alone. The volatile security situation has also disrupted the ability of aid workers to provide medical care.