UK military personnel have trained the Joint Expeditionary Force (JEF) as part of Exercise Joint Venture at the Royal Air Force (RAF) station in St Mawgan, Cornwall.
Around 1,600 troops were deployed to train military land, air and sea forces in dynamic, fictional scenarios.
During the exercise, the JEF shared knowledge and developed skills with partner nations, including Denmark, Estonia, Latvia, Lithuania, the Netherlands and Norway.
UK Armed Forces Minister Mike Penning said: “Working more closely with our partners is a key part of our plan for defence and security.
"That plan, backed by a rising defence budget, means more troops at readiness, operating hand in glove with our allies to deal with the threats we face.”
The training exercises aimed to help the JEF respond rapidly to global challenges across the full spectrum of operations, which include combat operations, humanitarian assistance and deterring threats, the UK Ministry of Defence (MoD) said in a statement.
Led by major general Stuart Skeates, the JEF coordinates operations from its Standing Joint Force Headquarters (SJFHQ).
Skeates said: “Exercise Joint Venture has been a significant milestone in the delivery of the Joint Expeditionary Force. The Standing Joint Force Headquarters is proving new ground, in the way the UK and coalition partners are able to deliver real and concerted military effect in a complex and ever-changing world.
“I look forward to the Standing Joint Force Headquarters playing its part in bringing the Joint Expeditionary Force to full operating capability by the end of 2018.”