The United States and Britain pledged nearly $1.5 billion in additional aid to Ukraine on Wednesday during a visit to Kyiv by their top diplomats as Ukrainian officials renewed their pleas to use Western-provided missiles against targets deeper inside Russia.

U.S. Secretary of State Antony Blinken announced more than $700 million in humanitarian aid, while British Foreign Secretary David Lammy confirmed that his country would provide another $782 million in assistance and loan guarantees. Much of the effort was aimed at bolstering the energy grid that Russia has repeatedly pounded ahead of an expected difficult winter.