UK sovereign hails national friendship, but delivers pointed messages in speech during four-day US visit. Britain’s King Charles III has used a speech in front of the United States Congress to pledge NATO unity and call for support for Ukraine amid Russia’s ongoing invasion. The address on Tuesday came during the royal’s  four-day visit to the US, with the US-Israel war with Iran, US President Donald Trump’s criticism of NATO, and trade tensions between the longtime allies looming large. Recommended Stories list of 3 items list 1 of 3 Giuffre family urges UK’s King Charles to meet Epstein survivors in US list 2 of 3 Prince Harry sued for defamation by Sentebale charity he co-founded list 3 of 3 King Charles arrives in US for trip overshadowed by Iran war and shooting end of list But Charles avoided any reference to specific frictions during his speech at the US Capitol, instead striking a light tone in his joke-heavy opening.…