What is Nato and why does it exist?

We go live to the Nato summit in Belgium, and explain what the alliance is and the significance of today’s meeting. Leaders issues a statement describing China's behaviour as a "systemic challenge".

We hear from BBC Burmese as Myanmar’s deposed leader, Aung San Suu Kyi, makes her first court appearance since the military took over the country. Ms Suu Kyi is accused of accepting cash and gold in bribes, and faces up to 15 years in jail if found guilty.

Our health expert of the day, Professor Manfred Green, joins us to answer listener questions. We’ll discuss the Delta variant, its symptoms and whether vaccines work against it.

And young people living in Iran speak to us ahead of the weekend’s elections in the country. They tell us what their daily life is like, the restrictions placed on them, and their hopes for the election.

Pictuire: NATO Secretary General Jens Stoltenberg gives a press conference during a NATO summit at the North Atlantic Treaty Organization (NATO) headquarters in Brussels, Belgium, 14 June 2021.Credit: EPA/Olivier Hoslet)