Finland's membership of NATO, in force since 2023-04-04. Membership is a treaty fact rather than an assessment of alignment, and it is what makes the Article 5 commitment apply to this state's territory. Finland hosts the ninth and newest battlegroup, established in June 2026 under Swedish framework leadership.
NATO and the eastern flank has as a member Finland and the eastern flank. A directional arrangement: the two parties do not hold the same position in it. Authored once and read from both ends.
安排
- 狀態
- 進行中有效且正在運作。不涉及其運作成效，也不涉及其走向。
- 涵蓋範圍
- 國防機構法律與條約經記錄此安排所包含的類別。並非衡量指標：涵蓋較多類別的關係只是描述得更詳細，而非更為牢固。
摘要
Acceded on 4 April 2023, ending a policy of military non-alignment held since 1945 and adding the alliance’s longest land border with Russia. Membership carries the mutual-defence commitment of Article 5 of the North Atlantic Treaty, under which an armed attack against one ally is treated as an attack against them all. Finland hosts the ninth and newest battlegroup, established in June 2026 under Swedish framework leadership. This record states the membership and its date; it says nothing about how much this state spends, what it contributes, or how reliable any party considers it — none of which membership establishes.
為何重要
成員國組合是本模組的骨幹：戰區內的每一項前沿部署、每一項指揮安排與每一項增援計畫之所以存在，都取決於誰在此條約之內、誰不在其中。按順序閱讀加入日期，也能解釋戰區的樣貌——於1999年與2004年加入的國家，正是如今前沿存在所在之處，而最新加入的兩個國家則補齊了波羅的海與北部陸地邊界。
協議
- 《北大西洋公約》 · 簽署於1949-04-04
創始條約。第5條載明共同防禦承諾；第10條是加入條款，之後的每一個成員國都依此加入。
仍然未知的事項
- Finland publishes its force structure to a depth most allies do not; what it has committed to the NATO Force Model or to any regional plan is nevertheless unpublished, and membership does not establish it.
- The closure of the eight land crossings with Russia since December 2023 is a national decision on migration and public order, not an alliance one, and is carried on the terrain record rather than here.
評估截至 — 2026-09-20 最近檢視 — 2026-09-28