The Defence Strategy of the Czech Republic equipment and other materiel. Special attention will be paid to stocking sufficient materiel to allow for intensive combat operations, and create stockpiles for the contingency mobilisation build-up of the Armed Forces. These measures are defined in specific policy documents. 23. In order to clarify the objectives that the Czech Armed Forces aspire to achieve, the political-military ambitions are set out below. They represent planning objectives to be elaborated on in specific planning documents, and their fulfilment will be the subject of periodical assessments: a. In an armed conflict which threatens the sovereignty and territorial integrity of the Czech Republic, all forces and assets of the Czech Armed Forces will be employed, including invoking citizens’ duty of military service (mobilisation). b. Under Article 5 of the North Atlantic Treaty, the Czech Republic will provide land and air forces earmarked under NATO defence planning, whose core comprises a brigade task force based on a mechanised brigade, prospectively of a heavy type. c. For international crisis management operations, the Czech Republic will, depending on the nature of crisis, deploy a land brigade task force without rotation for a six-month period. In the event that such a task force is not deployed, the Czech Republic will be able to simultaneously deploy a sustainable battalion and company size land task force, or an air force component, with rotation, for international crisis management operations. d. The Czech Republic contributes task forces to the NATO Response Force (NRF), EU Battle Groups (EU BG), or for use within the framework of the enhanced Forward Presence (eFP), totalling up to the equivalent of a battalion. e. The Czech Republic contributes to UN missions, primarily by assigning forces to the UN Peacekeeping Capability Readiness System (UNPCRS). f. The Czech Republic is able to contribute to additional operations and missions by supplying tailored task forces or individuals, for example Special Forces and teams of experts who can provide training and mentoring, as well as personnel required to man NATO and EU international command structures. It is also capable of deploying the Czech Air Force to provide air policing for NATO allies. 24. The attainment of political-military ambitions rests on the following principles: Single set of forces both for the performance of military missions and the support of civilian authorities in non-military crises. b. Force efficiency with respect to the tasks of the Czech Armed Forces in the national defence system and the most likely missions while maintaining the ability to respond flexibly across a broad spectrum of activities. c. Force effectiveness based on meeting NATO standards, with specific emphasis on force preparedness. d. Force modularity enabling the creation of mission-tailored task forces based on organic units. e. Force deployability and usability for carrying out missions in international operations while progressively increasing the sustainability of the deployed forces. f. Force interoperability providing for integration with allies and carrying out missions in allied integrated information environment. g. Gradual build-up of wartime capabilities. The assumed long-term warning times led, in the past, to the concept of so-called ‘deferred need’. Recent developments, however, have shown that a. 12