The US wants Ukraine to refine its war plan against Russia and is expected to raise the issue with President Volodymyr Zelenskyy in Davos, Switzerland, next week.

Jake Sullivan, the US National Security Advisor, is probably going to bring up the subject with the Ukrainian leader, the agency's sources said on condition of anonymity.

 Bloomberg, citing sources, says US officials will insist on this in the coming weeks to discuss non-public issues.

In particular, according to agency sources, differences between Zelenskyy and Ukraine’s Commander-in-Chief Valerii Zaluzhnyi are causing officials in Washington to worry that efforts to solidify a new strategy are being slowed down.

Currently, the Ukrainian military is developing plans for 2024, and a full range of options is being considered, one of the sources claimed.

The US wants to determine the best way to channel its support to help Ukraine defend itself next year, he added.

Kyiv's allies say developing a clear military strategy to defend current positions and further break through Russian lines is crucial.

According to media reports, Zelenskyy may visit Switzerland next week for at least two days.

Ukraine, the Group of Seven (G7) countries, and several states of the Global South held a secret meeting in December to increase support for Kyiv and its conditions for peace talks with Russia.