The UK-led Joint Expeditionary Force (JEF), comprising ten northern European nations, has successfully completed Exercise Joint Protector, a month-long operation conducted across multiple locations in Latvia.
The exercise demonstrated the partnership’s ability to rapidly bolster NATO’s eastern flank in response to emerging threats, according to the Ministry of Defence.
Military personnel from JEF member nations practised swift deployment from their home bases to strategic positions across Latvia. This year’s exercise also marked the first-time Ukrainian military officers joined, highlighting the alliance’s emphasis on learning from Ukraine’s combat experiences during the ongoing conflict with Russia.
The UK’s Minister for the Armed Forces, Luke Pollard, stated:
“Exercise Joint Protector demonstrates our unwavering commitment to regional security, keeping us secure at home and strong abroad, as well as the strength and depth of our international partnerships. The participation of our Ukrainian partners highlights the exercise’s importance, ensuring that we can learn from Ukraine’s hard-fought combat experience.”
The exercise focused on improving coordination and interoperability among JEF nations during the early phases of deployment. The JEF—comprising the UK, Iceland, Denmark, Norway, Netherlands, Latvia, Lithuania, Estonia, Sweden, and Finland—operates as a flexible and rapidly deployable force capable of addressing security challenges in Northern Europe.
The MOD highlighted that the Joint Expeditionary Force adds significant value to regional security, complementing NATO’s broader defence framework.
“The value added by the JEF is a significant contribution to both security and deterrence, giving JEF Participant Nation governments, and NATO, more options in times of crisis.”
This year’s exercise tested how quickly forces could integrate and deploy alongside key equipment across Latvia. The presence of Ukrainian officers reflected the growing partnership between the JEF and Ukraine, emphasising shared lessons from frontline combat operations.
As a NATO-aligned force, the JEF aims to enhance the alliance’s readiness while addressing specific regional security needs. The MOD affirmed the partnership’s strategic importance:
“Our collective vision for the JEF’s long-term development is for it to be a key component of Northern European security: supporting our members, delivering region-specific and multi-domain defence activities, and contributing to the security of Europe as one of NATO’s Framework Nation Concepts.”
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