Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia. It is the fifth-most populous country in the world, with a population exceeding 225 million people. Pakistan shares borders with India to the east, Afghanistan and Iran to the west, and China to the north. The Arabian Sea lies to the south of Pakistan.

The country has a diverse landscape that includes mountains, deserts, and coastlines. Pakistan is known for its rich cultural heritage, with influences from various civilizations including the Indus Valley Civilization, Persian Empire, Islamic caliphates, and British colonial rule.

Islamabad is the capital city of Pakistan, while Karachi is the largest city and the financial hub of the country. Urdu is the national language, with English also widely used in official and business communications.

Pakistan is a federal parliamentary republic with a President as the head of state and a Prime Minister as the head of government. The country has a mixed economy with agriculture, manufacturing, and services sectors playing important roles.

Pakistan has a strategic geopolitical position and is a nuclear-armed state. The country has faced challenges such as political instability, terrorism, poverty, and natural disasters, but has also made significant progress in areas like education, healthcare, and infrastructure development.