Johnson: Security guarantees will make Ukraine ‘impregnable’ to Russian attack

Boris Johnson has said Western allies are preparing to offer Ukraine a series of ‘security guarantees’ which should make the country ‘impregnable’ to a future Russian invasion (Stefan Rousseau/PA)

Western allies are preparing to offer Ukraine a series of “security guarantees” which should make the country “impregnable” to a future Russian invasion, Boris Johnson has said.

The British prime minister said it is essential to step up immediate military support to Kyiv, as he warned there is a “realistic possibility” that the conflict could drag on for a “long period”.