EU cannot rely on US and Britain, Merkel says

German chancellor Angela Merkel has gone on the offensive against the US and Britain following last week's G7 talks, saying that the European Union must not rely on its longstanding allies any longer.

During an election rally in Munich on Sunday, Merkel issued an impassioned rallying cry for the benefits of the bloc, urging European states to stand together at a time of political upheaval.

"The times in which we could completely depend on others are, to a certain extent, over," Merkel said. "I've experienced that in the last few days. We Europeans truly have to take our fate into our own hands."

World leaders met last week in Sicily for a G7 summit, with several fledgling leaders such as US President Donald Trump and French President Emmanuel Macron struggling to reach agreements on a variety of key issues.

Merkel's passionate speech comes as she faces into key elections in Germany

Merkel did little to hide her feelings during Sunday’s speech, referring to discussions on issues such as climate change as "unsatisfactory".

"The times in which we could completely depend on others are on the way out. I've experienced that in the last few days," she added.

"We Europeans have to take our destiny into our own hands."

Trump was the only leader present at the summit who did not give assurances that his country would back the Paris climate accord, with the Republican expected to make a decision on US involvement in the coming days.

Merkel's passionate speech comes as she faces into key elections in Germany later this year, where her CDU party is expected to face stiff competition from the SPD and AfD parties.