Croatia have promised their throngs of fans in Germany that they will improve after their Euro 2024 campaign began with a 3-0 loss to Spain. Saturday’s defeat in Berlin was watched by around 50,000 noisy Croatians in the Olympiastadion and similar crowds are expected against Albania in Hamburg on Wednesday and Italy in the Group B finale next Monday. Germany is home to a large number of Croatian ex-patriots and several players in the squad play or have played in the Bundesliga. Reports said over 100,000 Croatians were in the German capital in total, with those without tickets also travelling t…