Complex sentence: The National Command Authority (NCA) of Pakistan is an executive and administrative government agency of Pakistan Government that is responsible for policy formulation and the exercise of employment and development control over all strategic nuclear forces and strategic organizations.
Split into simpler sentences: The National Command Authority (NCA) of Pakistan is a Pakistan government organization tasked with the command and control of Pakistan's strategic nuclear forces. It is an executive and administrative government agency of Pakistan Government that is responsible for policy formulation and the exercise of employment and development control over all strategic nuclear forces and strategic organizations.