Pakistan Muslim League-Nawaz (PML-N) leader Hamza Shahbaz has called for forging unity setting aside petty gains to steer the country out of host of problems. While addressing the PML-N activists at Model Town, Hamza stressed the need of cooperation and collaboration among the institutions. He added the PML-N leadership believes in selfless service to the people. "If the people give an opportunity to serve them in 2018 elections, we will work hard to make the country great and make other parts of the country as like Lahore and Punjab. Pakistan belongs to all of us as it consists of federating units.