John Hemmings

The provided news articles do not contain any information about a person named John Hemmings. Therefore, it is impossible to provide a summary of their background, newsworthiness, recent events, or current relevance based on the given text. The articles discuss topics such as US allies restricting military access due to tensions with Iran, political turmoil within the UK Labor Party, and President Trump's opposition to a UK island handoff deal. Without any mention of John Hemmings, a relevant summary cannot be generated.