French President Emmanuel Macron begins a three-day state visit to Britain on Tuesday, which will see him address parliament and try to rekindle a purportedly warm relationship with King Charles III.The French leader will hold several meetings with UK Prime Minister Keir Starmer, who promised to reset relations with European capitals when he took power in 2024 after years of Brexit-fuelled tension.Their discussions are expected to focus on aid to war-torn Ukraine and bolstering defence spending