Kyiv, Ukraine — Ukraine has key questions it wants answered as army chiefs from over 30 countries arrive Tuesday in Paris for talks on creating an international force to deter future Russian aggression once a ceasefire is established. They include troop size, location and crucially, military options in the event of a transgression.

The French president on Tuesday welcomed military leaders from EU and NATO countries, including Britain and Turkey, to investigate security guarantees for Ukraine as negotiations with US officials began in Saudi Arabia.

French President Emmanuel Macron was on Tuesday to address a meeting of military chiefs from 30 European and NATO countries willing to contribute to security guarantees for Ukraine after any negotiated truce with Russia.