The leaders of the G20 member states will this morning assemble at the Excel Arena in east London as they prepare for five hours of debate on how to tackle the financial crisis. Here, Financial News profiles the governments attending and their likely agendas for the day.

Many of the countries involved have differing views on how best to remedy the turmoil in the global markets, with a broad split between a new focus on financial regulation, a cause pushed by Germany's Angela Merkel and France's Nicolas Sarkozy, and a drive for co-ordinated fiscal stimulus, a move supported by Barack Obama, Gordon Brown and Japan's Taro Aso.