The G7 summit of global leaders will cost Germany a reported 200-million Euro to host.

The two-day event, which gets underway today at an Alpine resort in Bavaria, will see the richest nations in the world discuss topics including Trade, violent extremism and climate change.

US President Barack Obama has already signalled his intentions with a remark upon arrival about "standing up to Russian aggression".

While, British Prime Minister David Cameron is expected to focus on international health issues.

Sky's Europe Correspondent Robert Nisbet has more: