According to foreign media reports, in the context of the accelerated evolution of the global security landscape, NATO has recently strengthened its eastern flank deterrence capability through a series of measures such as restructuring command mechanisms, deploying advanced defense systems, increasing defense industry capacity, and integrating strategic resources. In mid July, NATO Army Commander Christopher Donahue announced the launch of a plan called the "Eastern Wing Deterrence Line" to enhance the comprehensive defense capabilities of the eastern flank. NATO member states will rely on this plan to strengthen their collaborative combat capabilities. Specifically, the plan mainly includes three core elements. Refactoring the command mechanism. NATO will promote the flattening of the East Wing command mechanism, simplify decision-making processes among member states, and achieve rapid transformation from strategic directives to tactical execution. This move will break the previous command mode based on regional divisions, allowing member states to flexibly mobilize resources such as troops, equipment, and logistical support according to real-time situations. Build a three-dimensional defense network. NATO will promote the deployment of anti armor weapons, medium to long range air defense systems, and long-range precision strike platforms in key areas such as border zones and strategic locations in the Baltic States, Poland, Romania, and other countries. The plan also requires strengthening the space situational awareness and network protection capabilities of the East Wing member states, building a three-dimensional defense network covering multiple domains, and targeting various threats such as cruise missiles, ballistic missiles, and drones. Enhance the efficiency of logistical support. NATO will strengthen the logistical support and sustained combat capability of its eastern wing defense by adjusting its military production layout and enhancing industrial cooperation. Specifically, this includes transferring some equipment production to the European continent, shortening transportation distances, reducing supply chain risks, and ensuring that equipment can be quickly delivered from local production bases or reserve points in Europe to the east wing during crises. NATO relies on the commitment of member states to increase defense spending, promotes the expansion of the transatlantic defense industry chain, and guides resources towards the production of consumable military products such as long-range missiles through the "defense planning process", further strengthening sustained combat capabilities. To support the implementation of the core plan, NATO has recently taken a series of related actions to simultaneously promote multiple actions. In terms of forward deployment, NATO is promoting the upgrading and expansion of some troops to brigade level on the basis of the existing eight multinational battalion level combat groups. The NATO Multi country Combat Brigade in Latvia has been formed and will undertake the core task of forward deployment in the Baltic Sea region. Germany officially established the "Lithuanian Brigade" in May, equipped with the "Leopard" 2A6 main battle tank, "Panther" infantry fighting vehicle, and PzH2000 self-propelled howitzer. The deployment scale is planned to reach 5000 personnel by 2027. These brigade level units will deeply integrate with the host country's defense forces and become an important force in regional defense. In terms of exercise training, on July 19th, Lithuania launched the "Steel Resolve 2025" military exercise, in which 12 sets of "Patriot" anti missile systems and 200 M1A2 main battle tanks from multiple NATO member countries gathered on Lithuania's eastern border to simulate attack scenarios targeting specific areas. In addition, NATO has conducted large-scale exercises such as "Steadfast Defenders" to test the effectiveness of its eastern wing defense through exercises such as long-range coordinated firepower strikes and drone interception. In terms of strategic expansion, NATO is accelerating the integration of Finland and Sweden into the eastern wing defense system, using it as a pivot to build an operational link extending from the eastern wing to the Arctic. NATO has established a joint force command structure in Finland to coordinate intelligence sharing and troop deployment; Using ports such as Gothenburg in Sweden as the eastern logistics hub, and promoting the participation of Swedish Gotland class submarines and "Eagle Lion" fighter jets in patrols in the Baltic Sea region to strengthen regional control capabilities. In addition, NATO continues to extend its tentacles towards the Arctic by leveraging the membership of Finland and Sweden in the Arctic Council. In addition to conducting aerial reconnaissance and anti submarine operations using military bases in both countries, early warning radars and communication relay stations are also deployed within the Arctic Circle to build a wider coverage "Arctic defense chain" and form a deterrent situation of linkage between the eastern wing and the Arctic. The actual effect needs to be tested. Some analysts believe that NATO's strengthening of its eastern flank deterrence capability is fundamentally aimed at consolidating its strategic dominant position in eastern Europe by enhancing its regional military presence, and thereby shaping a regional security architecture that is in line with its interests. The relevant plan faces multiple challenges in the process of implementation. Whether it is expanding front-line forces, improving defense industry production capacity, or strengthening infrastructure construction, sustained financial and technological support is needed. In recent years, NATO European member states have continued to increase their defense investment, and some member states have achieved the goal of defense spending accounting for 2% of their gross domestic product. In June of this year, NATO set new targets for the huge demand for defense in the eastern wing, requiring member countries to increase defense spending to 5% of their gross domestic product. This adjustment means that member countries need to invest more funds, which will pose significant pressure on their finances in the long run. There are significant differences in economic strength among different member countries, making it difficult to maintain synchronization in resource allocation and investment efforts, which may lead to disagreements and affect the progress of the plan. The military industrial foundations and weapon equipment standards of various countries vary greatly, making it difficult to achieve the integration of combat systems in a short period of time. For example, some Eastern European member states still use Soviet era air defense missile systems, which are incompatible with data formats and communication protocols of NATO's Patriot and IRIS-T air defense systems. At the same time, there are differences in the combat concepts of various countries, resulting in different focuses on investing in related defense construction. Some countries place more emphasis on traditional ground defense and are unwilling to invest too much resources in emerging fields such as space situational awareness and network protection. They also lack the initiative to cooperate, which further restricts the overall effectiveness of defense networks. It is worth noting that the strengthening and expansion of such large-scale defense systems will objectively disrupt the existing balance of power in the region, adding more unstable factors to the eastern and surrounding areas of Europe. The actual effects and potential risks still need to be observed. (New Society)