Greece as a state in South-eastern Europe and the Mediterranean has perceived itself as a frontline state, especially after it became a NATO member in 1952 along with Turkey. The two states formed the south-eastern flank of NATO and along with Iran constituted the Greece, Turkey, Iran (GTI) Corridor, part of Rimland. Greece’s strategic value stemmed from its frontline position in relation to the Eastern Bloc. After the dissolution of the Eastern Bloc, Greece has reinvented itself as a frontline state, this time in the Mediterranean Sea. We use the historical notion of longue durée and loci of Classical Geopolitics, such as Heartland and Rimland, to assess Greece’s strategic value in the long period. We also propose an additional spatial unity, the New Rimland.