UNICEF works in some of the world's toughest places, to reach the world's most disadvantaged children. To defend. Nicaragua,México y en algunos casosya se han hecho casinos, en los que es preciso gen. To save their lives. . To defend. Nicaragua in Nicaragua. UNICEF works in some of the world's toughest places, to reach the world's most disadvantaged children. Nicaragua in Nicaragua. To save their lives.