Top foreign policy advisers from Western countries and Ukraine are meeting Sunday to help push forward Ukrainian President Volodymyr Zelenskyy’s peace formula that aims to end Russia’s war on his country.

The fourth such meeting of national security advisers takes place in the Swiss town of Davos, where Zelenskyy is set to attend the World Economic Forum’s annual meeting starting Tuesday. He will endeavor to keep up international focus on Ukraine’s defense amid eroding support for Kyiv in the West and swelling distractions like conflict in the Middle East.