In its latest offer delivered on Sunday, Iran proposed opening the key waterway to shipping traffic and lifting the U.S. blockade, while postponing the thornier nuclear issue until later.

Not since his mother, Queen Elizabeth II, traveled to Washington after the Suez Crisis has a visit by the British monarch come at such a fraught point in Anglo-American relations.

Not since his mother, Queen Elizabeth II, traveled to Washington after the Suez Crisis has a visit by the British monarch come at such a fraught time in Anglo-American relations.