PMO meaning in Military and Defence ?

A project management office (abbreviated to PMO) is a group or department within a business, government agency, or enterprise that defines and maintains standards for project management within the organization. The PMO strives to standardize and introduce economies of repetition in the execution of projects. The PMO is the source of documentation, guidance and metrics on the practice of project management and execution.

Darling & Whitty (2016) note the definition of the PMO's function has evolved over time:

Often PMOs base project management principles on industry-standard methodologies such as PRINCE2 or guidelines such as PMBOK.