This study is at the crossroads of history and information and communication sciences. Its main point is a diachronic and comparative vision of a memorial phenomenon through the lens of local press. It is legitimated by the proximity of commemorative ceremonies. The comparison made between Metz and Luxembourg - one being a regional metropolis and the other the capital city of a small European country - tries to understand how memories related to this conflict emerge and evolve in the media according to the historical, sociological and political contexts of both towns. A series of hypothesis organized in three axes results from this research question: the topic of the article, the textual content and the photographic illustration. Is there a conflict or a cohabitation between memories on a territory according to their legitimacy? Will the memorial actors (figures) always be the same and what will the signification be if there is a form of consistency and/or if there is an evolution? Visually, what effect will the representations have on the media image (or the reflection) of the pasts of both towns? As such, my study tries to understand the emergence and the preservation of memories relative to the conflict by articulating this memory, its social legitimacy and the interest that it has for local authorities in the memorial landscape of the cities. My results are organized in three themes which are: the constancy of the monuments and the memory, the reappropriation of existing buildings for the memory with low legitimacy or with a national or international echo and the emergence of monuments and memories in order to improve and to complete the patrimony and the local urban memorial landscape. However, one can see a consistency in the cross-border memory, through decades and based upon the representation of historical actors: the local population, the local resister, and the American liberator. ; Cette étude, à la croisée de l'histoire et des sciences de l'information et de la communication (sic), a comme principal ...