Italian President Sergio Mattarella landed in Brasilia Sunday for a five-day visit to South America's largest country, Agencia Brasil reported. The first visit of an Italian head of state to Brazil in 24 years marks the 150th anniversary of immigration from the European nation. Topping the agenda of talks will be the relationship between the European Union (EU) and the Southern Common Market (Mercosur), as well as other topics such as climate change and energy transition.