Armed Cloud explores progressive metal from Nijmegen since 2015. Their militarized-weather name suggests the threatening potential of their compositions, rumbling with progressive complexity from the Netherlands' oldest city on the Waal River.

Armentar was a Belgian black metal band from Helchteren, Limburg, formed in 2005 and active until their split-up. The band recorded for Absorb Records and explored themes of Satanism and hatred common to the rawer end of the Belgian underground black metal scene.

Armia has evolved through multiple radical phases — from hardcore punk through alternative and avant-garde metal to experimental post-hardcore — from Poznań since 2015. Their Polish name meaning 'army' belies a creative restlessness that has made them one of the most stylistically adventurous acts in the Polish underground.

Armifer creates melodic death metal from Cádiz since 2014, their Latin name meaning 'arms-bearer' evoking the martial tradition of this ancient Phoenician port city. Over a decade on Spain's Atlantic coast, they have developed a refined brand of melodic extremity.

Arminius merges black and death metal from Dordrecht since 2017, named after the Germanic chieftain who destroyed three Roman legions in the Teutoburg Forest. Their historical-warrior identity drives music of tribal aggression from South Holland.

Armistice is a thrash and speed metal band from Munich, Germany, formed in 2011, combining thrash's aggressive precision with speed metal's relentless velocity. The band operates from Bavaria's capital, contributing to the southern German thrash tradition.

Armnatt creates black metal from Tavira in the eastern Algarve since 2020. Their name, blending Old Norse elements, brings Scandinavian linguistic heritage to black metal from this sun-drenched Moorish-influenced town on Portugal's southern coast.

Arms of Ra channels sludge metal from Paris since 2010, their Egyptian sun-god name adding ancient mysticism to their crushing, low-tempo compositions. Over a decade of activity has established them within the French capital's heavy underground.

Arms of War is a death/thrash metal band from Brussels, formed in 2010 by former Bloodshot guitarist Vadim Grebenko alongside drummer Alex Shag and bassist Roma Siadletski (also of Iron Mask and Magic Kingdom). Their 2014 debut album "Legions of Steel" was produced with Triptykon guitarist V. Santura, who also contributed a guest solo, and blends thrash aggression with melodic death metal and neo-classical lead guitar passages.