Article 5, the principal at the heart of NATO, provides the alliance’s members with unprecedented support and safety – it also threatens them with the risk mass conflict
Prime Minister Boris Johnson has made sweeping claims about the UK’s preparedness to support Ukraine as it faces invasion from Russia.
The line, however, has been drawn at the introduction of a no-fly zone which would – if introduced – limit Russian air superiority leaving its troops more vulnerable.
The move however has been firmly ruled out over fears it would cause a major escalation to the conflict.
The Defence Secretary, Ben Wallace, said that were any NATO fighters to shoot down a Russian jet it would trigger Article 5, which would lead to all 30 member states being forced into the defence of one another.