Air China restarted direct flights between Beijing and Pyongyang on Monday for the first time since the COVID-19 pandemic, although for now North Korea is only allowing in travelers with official or other special purposes.

This report looks at tourism in one of the world’s most isolated countries, alongside the shifting relations between Pyongyang and its main economic and diplomatic backers?— China and Russia.

Before both countries closed their borders due to COVID-19, there were an estimated 300,000 foreign visitors in 2019, 90% of them Chinese, according to South Korea’s Institute for International Economic Policy.