The global security challenges after the post-Cold war period has affected many countries. Pakistan’s geography and location present its security planners with serious, almost irresolvable strategic and tactical problems. It borders the nuclear states of India and China, an ambitious Iran, and an unstable Afghanistan, which is perceived as a gateway to its commercial-strategic ambitions in Central Asia. Pakistan’s key security problems are a reflection of its history and domestic circumstances. The overriding concern of Pakistan is its internal and external security. Strategically, Pakistan lacks territorial depth. Its main cities and communication routes are relatively close to the border with India and are susceptible to attack. In addition, the headwaters of Pakistan’s rivers and main irrigation systems originate from India. Pakistan’s borders with India were also new and mainly unfortified and, in many places, were drawn in ways that made them indefensible. Because the borders were also un-demarcated, there was abundant chance for conflict. Pakistan has particularly been affected with a number of issues. It has been argued by many that a Fourth generation/Hybrid war has been imposed on Pakistan, in order to break the nation (Balkanization of Pakistan into different parts) with the aim of making it either extremely weak or total destruction as a nation state (so that it is not able to challenge the hegemonistic ambitions of its adversaries).The purpose of this book is to assess the military security problems that Pakistan faces, and focus on its external security matters (military threats from neighbouring countries such as India, balance of power in the region, nuclear and ballistic missile threats, relationship with external powers, the high risk of war and its role on the ‘War on Terror’), and its internal security problems (sectarianism, proliferation of small arms, refugees, ethnic violence, drug problem, economic weaknesses), and also its ability to cope with these problems.