The Latest Breaking News from Jake Sullivan

The United States does not believe it needs to increase the size of its own nuclear arsenal in order to deter the combined forces of Russia, China and other rivals, White House national security adviser Jake Sullivan said on Friday.

The White House is ready to have talks with Russia without preconditions about a future arms control framework as the last treaty between the two nuclear powers has faltered

The United States on Thursday imposed sanctions on companies it accused of fueling the conflict in Sudan, stepping up pressure on the army and a rival paramilitary force to bring an end to the fighting as ceasefire talks are at risk of collapse.

A top Israeli official played down prospects for a U.S.-brokered diplomatic breakthrough with Saudi Arabia on Tuesday, describing Prime Minister Benjamin Netanyahu's government as "in a fog" on any progress in related talks between Riyadh and Washington.

It’s Zelenskiy who is setting the pace diplomatically and strategically. The US must end the prevaricating that may have needlessly prolonged the war

As the war enters its 458th day, we take a look at the main developments.

Russia's Foreign Ministry summoned senior U.S. diplomats on Friday to protest against remarks by White House national security adviser Jake Sullivan, whom it accused of "effectively endorsing strikes" on Crimea.

Ukraine now threatens encirclement of ruined eastern city after Russia claims victory.

President Joe Biden’s decision to allow allies to train Ukrainian forces on how to operate F-16 fighter jets — and eventually to provide the aircraft themselves — seemed like an abrupt change in position but was in fact one that came after months of internal debate and quiet talks with…