How often do countries typically update their Military Information Security Agreements (MISA)?

Countries typically update their Military Information Security Agreements (MISA) routinely, aligned with changes in policies or significant military events. Such updates are crucial as they reflect the evolving nature of international relations, changes in military strategies, and advancements in technology. Ensuring that these agreements are current helps maintain effective communication and cooperation between allied nations and enhances the security of sensitive information.

Factors that might necessitate an update include changes in leadership within military organizations, shifts in defense strategies, new threats that require reassessment of information sharing protocols, or technological advancements that could impact how countries manage and protect military information. By aligning updates with these significant factors, countries can ensure their agreements maintain relevance and effectiveness in a changing global landscape.