The preparation of security guarantees for Ukraine by the G7 countries will take many months, and some bilateral agreements are expected to be concluded only next year.

The Wall Street Journal with reference to unnamed European officials reports that there is no consensus among G7 countries on how detailed the commitments to Kyiv should be. In addition, the countries need to clarify with Ukraine what its future military needs might be.

The G7 will need to coordinate bilateral talks between Western capitals and ensure that allied defence industries can deliver the promised military assistance to Ukraine without undermining the need for Western forces to replenish and expand their own capabilities.

As Western officials acknowledge, without reliable support packages for Kyiv, Russia is unlikely to be deterred from continuing the war. 

They also cited the issue of Ukraine's ability to effectively allocate and defend military spending in the years ahead after a change of government in the West.

As the WSJ noted, European allies are already preparing for the fact that the long-term promises of US President Joseph Biden's administration will be weaker than expected or too vague to ensure reliable deterrence of Russia.

It is pointed out in the article that if Washington significantly reduces its support for Kyiv, Europe is unlikely to be able to fill the gap financially or militarily, as it faces severe financial pressure and few countries have a defence industry that can match the US.

In July, at the NATO summit in Vilnius, the G7 countries agreed on a framework document on security guarantees for Ukraine. The leaders agreed on a framework rather than specific parameters of the security guarantees, and specific bilateral agreements will be signed later.

So far, 29 countries have joined the G7 declaration on long-term security assurances for Ukraine.

Read more on the topic: "Security Guarantees" Pledged to Ukraine Would Leave Ukrainians Frustrated