Typically, irredentist demands are at first made by members of non-state nationalist movements. When they are adopted by a state, they typically result in tensions, and actual attempts at annexation are always considered a "casus belli", a cause for war. In many cases, such claims result in long-term hostile relations between neighbouring states. Irredentist movements typically circulate maps of the claimed national territory, the "greater" nation state. That territory, which is often much larger than the existing state, plays a central role in their propaganda.