Which of the following is an example of UK military involvement abroad?

The choice of evacuation in Sierra Leone represents a significant example of UK military involvement abroad. This particular intervention occurred in 2000 when the UK deployed troops to assist in the civil conflict that was devastating Sierra Leone. The British military's involvement was crucial in stabilizing the situation and facilitating the evacuation of foreign nationals, as well as providing support to the Sierra Leonean government and assisting in the disarmament of rebel forces. This operation highlights the role of the UK military in responding to international crises, often involving the protection of civilians and the restoration of order in unstable regions.

Other options, while related to military or humanitarian efforts, do not as directly reflect the types of military interventions often characterized by deployments under traditional military command, such as direct support for government forces, combat, or peace enforcement, which were essential aspects of the operation in Sierra Leone.