The American visit comes as President Vladimir Putin visited Russia's Kursk region - parts of which have been under Ukraine's control since an incursion last year. Russian TV aired footage of Putin meeting military commanders, who told him Russian troops had recaptured 86% of the area from Ukraine.

Massive drone strikes on Moscow left a trail of destruction in residential areas in Ukraine’s largest ever attack on the city according to local officials. The attacks come as the U.S. and Ukraine delegations are engaged in pivotal negotiations in Saudi Arabia over a possible minerals deal in exchange for security guarantees.