Prince Alwaleed Bin Talal, Chairman of the Lebanese-registered Alwaleed Bin Talal Foundation-Global, and Anthony Lake, Executive Director of the United Nations Children's Fund (UNICEF), hold talks in Riyadh. The two sides discussed the collaboration agreement between Alwaleed Bin Talal Foundation-Global and Bill and Melinda Gates Foundation to bolster the Global Polio Eradication Initiative. Alwaleed Foundation pledged $30 million to the project. — Courtesy photo