"Our defence is impregnable but now we need to focus on economic independence," he said.
Sharif was addressing a gathering in Lahore to mark the 16th anniversary of atomic explosions which has been named as Youm-e-Takbeer.
Prime Minister said that it is very unfortunate that despite being a nuclear power, Pakistan still faces power shortages, poverty, unemployment, insecurity and terrorism.
He said the government is working day and night to rid the nation of these problems.
The Prime Minister further said that the government is not only planning to overcoming existing problems but also has a strategy for the next decades to come.
Prime Minister further said that our government is also focusing on infrastructure development with project including Karachi to Lahore motorway, Rawalpindi Islamabad metro busses, Lahore orange train service with a cost of Rs 60 billion and Karachi mass transit project that would substantially resolve traffic problems of Karachi.