In this edition of The World This Week: China's military parade to mark the 80th anniversary of the end of World War II sees President Xi Jinping, Russian President Vladimir Putin and North Korea's Kim Jong Un side by side; former Brazilian president Jair Bolsonaro is back in court on charges of trying to violently overturn the 2022 election result; and Germany's former chancellor Angela Merkel reflects on her country's policies during the 2015 migrant crisis.