Thousands of Greeks rallied in front of the national parliament last night to show support for the country’s place in the euro zone, but influential voices within the ruling Syriza party urged the leadership to hold firm to its election pledges. The pro-euro rally at Syntagma Square, the second such demonstration in a week, came a day after an anti-austerity protest in support of prime minister Alexis Tsipras’s tough stance towards Greece’s international creditors. As Mr Tsipras was sitting down with European Union leaders in Brussels to find a way of averting a Greek...