The world is currently experiencing the most serious refugee crisis since World War II. The United Nations estimates that more than 300,000 people have tried to cross the Mediterranean Sea to reach Europe by 2015. Most migrants come from Africa and the Middle East, fleeing political persecution and wars, such as punishing Syria since 2011. But not everyone can reach their final destination. The crossing is dangerous, made in precarious boats usually overcrowded. By 2015, some 2,500 people have died of drowning in the Mediterranean Sea. Brazil is a nation formed by immigrants - from the Portuguese, who arrived here from 1500, passing through the Africans brought as slave labor, to the wave of Europeans, Japanese and Arabs who arrived in the country between the end of the 19th century and beginning of the 20th century. Currently, the country has been receiving immigrants from neighboring countries such as: