The expansion of the liquefied natural gas (LNG) terminal capacity in Croatia is a key response to the energy crisis caused by the decline in Russian gas exports to Europe in 2022. The project to expand the terminal on the island of Krk is aimed at reducing Europe's dependence on energy imports and encouraging regional cooperation. The technological aspects of the project include the modernization of the FSRU ship "LNG Croatia" and the addition of a new regasification unit, increasing the terminal's capacity from 2.9 to 6.1 billion m³/year. These upgrades enable more efficient and flexible gas supply, with minimal environmental impact. Economically, the project represents a significant investment with long-term positive effects on the national economy. Financial analysis of the project shows that it is profitable, with a positive net present value (NPV) and internal rate of return (IRR). Sensitivity analysis indicates that changes in capital and operational costs, as well as changes in the capacity lease of the terminal, can significantly affect the financial sustainability of the project. Strategically, the expansion of the LNG terminal capacity and related infrastructure is crucial for ensuring energy security and diversifying energy sources in the region. The project is linked to initiatives such as REPowerEU and national recovery and resilience plans, and represents an important step towards reducing dependence on Russian gas. Increased capacities and improved infrastructure enable Croatia to become a regional leader in natural gas supply, encouraging cooperation and integration with neighboring countries. The expansion of the LNG terminal capacity in Croatia is a key response to the energy challenges of Europe. The project not only increases Croatia's energy security but also promotes economic growth through investments in infrastructure and technology, providing support to neighboring countries in reducing their dependence on traditional sources and supply routes of energy.