US, NATO planners start to craft Ukraine security guarantee options

FILE PHOTO: Smoke rises from damaged buildings, at the site of the Russian drone strike, amid Russia's attack on Ukraine, in Kharkiv, Ukraine in this handout picture released August 18, 2025. Press service of the State Emergency Service of Ukraine in Kharkiv region/Handout via REUTERS /File Photo

(Reuters) -U.S. and European military planners have begun exploring post-conflict security guarantees for Ukraine, U.S. officials and sources told Reuters on Tuesday, following President Donald Trump's pledge to help protect the country under any deal to end Russia's war.

Ukraine and its European allies have been buoyed by Trump's promise during a summit on Monday of security guarantees for Kyiv, but many questions remain unanswered.