The paper critically examines Pakistan's counterterrorism strategy, which it adopted after the 9/11 incident, by arguing that it has proved ineffective and counter-productive to uproot the terrorist network of Pakistan-based militant Jihadi and extremist groups, which also have links with Al-Qaeda. In this respect, the paper, besides defining and assessing Pakistan's counterterrorism strategy, also analyzes various factors which have contributed to the inefficacy of the country's counterterrorism strategy. Moreover, the paper also analyzes implications of the ineffectiveness of Pakistan's counterterrorism strategy for domestic, regional and international security. In the concluding analysis, the paper emphasizes upon the need of formulating an effective counterterrorism strategy of Pakistan.