This study aims to research the Swedish municipality's political implementation of sustainable development and if the implementation can be considered weakly or strongly sustainable. The study also researches what effects resilience has on that outcome. To achieve this aim, the study has chosen to use a quantitative case study together with a content analysis method applied on Karlskrona's overview plan for 2050. The study has chosen to use international and national authorities' definitions of sustainability and resilience for its theory. Theories about strong and weak sustainable development defined by Stig Montin and Mikael Granberg were also used to form the studies theory. The case study was made by analyzing frequencies of paragraphs containing aspects of resilience or of sustainability. Both groups were divided into subgroups defined as economic, ecological and social dimensions respectively. The result of this case study was that aspects of resilience appear a lot less than aspects of sustainability but that an inclusion of resilience is paramount for the overview plan to be considered strongly sustainable. This appeared as a result when aspects of resilience were removed it created an imbalance between the dimensions of  sustainability which caused the plan to be considered weakly sustainable.