Ukraine and Russia have agreed to a proposed ceasefire in the Black Sea, as announced by the US. The agreement aims to ensure safe navigation and prevent military use of commercial vessels. Discussions took place in Riyadh without direct talks between Ukraine and Russia. Ukraine's defense minister emphasized that any military movement by Russia outside the eastern Black Sea would violate the agreement. The significance of the deal is questioned, given Russia's weakened military presence in the Black Sea. Both sides have differing interpretations of the ceasefire terms, particularly regarding energy infrastructure.