How does the potential peacekeeping mission in Ukraine differ from previous British military deployments?

The potential peacekeeping mission being considered in Ukraine differs significantly from previous British deployments in Bosnia and Sierra Leone. While British troops previously participated in UN peacekeeping missions in both those countries in the 1990s and early 2000s, the Ukraine operation would be fundamentally different in scale and organization. The Ukraine mission would be much larger in scope than previous deployments. Additionally, it would not operate under the traditional United Nations framework that governed the Bosnia and Sierra Leone operations, nor would it be conducted as a NATO mission. This represents a departure from established peacekeeping models Britain has participated in previously, suggesting a novel approach to military intervention in the current Ukraine conflict.