The 98th National Guard Higher Command "Archipelago" (Greek: 98 Ανώτερη Διοίκηση Ταγμάτων Εθνοφυλακής «ΑΡΧΙΠΕΛΑΓΟΥΣ», 98 ΑΔΤΕ; 98 Anóteri Dioíkisi Tagmáton Ethnofylakís "Archipelágous", abbrev.

98 ADTE), is a Hellenic Army mechanized infantry division-sized command responsible for the defence of the island of Lesbos, Greece.

[1] At the conclusion of World War II, the 120th National Guard Command (Greek: 120 Διοίκηση Ταγμάτων Εθνοφυλακής, romanized: 120 Dioíkisi Tagmáton Ethnofylakís) was formed in Lesbos, overseeing the territorial National Guard battalions - predominantly reservist and militia units - based on the island.

Despite its "National Guard" moniker, which honors the formation's previous territorial incarnations, the 98 ADTE evolved through the 1980s and 1990s into a mechanized infantry division.

[2] The emblem of the 98th National Guard Higher Command is a lion facing east, above a graphic depiction of the island of Lesbos.