Some 220 more firefighters were called up from across the Czech Republic on Saturday to support efforts to contain a wildfire raging in a national beauty spot, even as German crews continued to struggle with fires across the border. The call-up of Czech personnel brings the total to 650 battling the flames in the Bohemian Switzerland National Park, alongside eight helicopters and five specialist planes. The fire broke out there last weekend and now covers an area of 10.6 square kilometres. It spread across the border to Germany’s Saxon Switzerland National Park on Monday. “We will actively go …