Outrage and condemnation over billionaire’s suggestions including formally making Crimea part of Russia.

The Tesla chief executive also suggested that Crimea, which Moscow seized in 2014, be formally recognised as Russia, that water supply to Crimea be assured, and that Ukraine remain neutral.

- Crimea formally part of Russia, as it has been since 1783 (until Khrushchev’s mistake).

- Water supply to Crimea assured.

The Ukrainian presidential aide Mykhaylo Podolyak suggested a “better peace plan” under which Ukraine took back its territories including Crimea; Russia was demilitarised and denuclearised; and “war criminals” faced an international tribunal.

Musk, who is also chief executive of SpaceX, followed up his first tweet with another poll: “Let’s try this then: the will of the people who live in the Donbas & Crimea should decide whether they’re part of Russia or Ukraine.”.