The Defence Attaché represents the Swiss Armed Forces in the United Kingdom, Ireland and the Netherlands. The main tasks are:
- Enhancing bilateral co-operation between the Ministries of Defence and Armed Forces of the respective countries.
- Organising official visits between Armed Forces Representatives of the accredited countries and Switzerland.
- Liaising and informing the defence authorities in the accredited countries on Swiss defence matters and policies.
- Reporting on developments in security policy and military issues in the accredited countries.