The alliance also pledges more aid to Ukraine, but China warns it to stop "provoking confrontation".

Nato members have pledged their support for an “irreversible path” to future membership for Ukraine, as well as more aid.

While a formal timeline for it to join the military alliance was not agreed at a summit in Washington DC, the military alliance’s 32 members said they had “unwavering” support for Ukraine’s war effort.

Nato has also announced further integration with Ukraine’s military and members have committed €40bn ($43.3bn, £33.7bn) in aid in the next year, including F-16 fighter jets and air defence support.

The bloc’s Secretary-General Jens Stoltenberg said: “Support to Ukraine is not charity - it is in our own security interest.”