Chatham

Orysia Lutsevych, head of the Ukraine Forum at Chatham House says it's interesting how Ukrainians rallied around Zelensky after the Oval Office, almost like they took it as a personal insult of Ukrainian statehood.

"Look at Russia's objectives in Europe," says Armida van Rij, head of the Europe programme at Chatham House.

Robin Potter, a research fellow at Chatham House, said Heathrow was one of only two UK airports – Gatwick is the other – that has any level of regulation around its resilience standards.

Dr Marion Messmer, a senior research fellow on the International Security Programme at Chatham House, thinks the most likely trigger for a war with Russia would be miscalculation, rather than design.

"One way to think about this is that Beijing's primary goal is not to enhance the welfare of Chinese households, but rather the welfare of the Chinese nation," David Lubin, a research fellow at Chatham House wrote.