On Wednesday, Herzog and British Prime Minister Keir Starmer met at Downing Street.
Their meeting was only announced on the second day of Herzog’s visit.
Both leaders said it was an awkward exchange as Herzog voiced opposition to the UK government’s position on Palestinian statehood and Starmer criticised the Jewish state’s conduct in war against Hamas and Tuesday’s strike on terrorists in Qatar.
Speaking at Chatham House after the meeting, Herzog said: “It was a meeting between allies, but it was a tough meeting.
“Things were said that were tough and strong, and clearly we can argue, because when allies meet, they can argue. We are both democracies. We both understand the threat from the jihadists.”