8legs: Spanish air and space force

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5G communication bubbles for defence and mission-critical applications

Telefónica unveils 5G bubbles as secure, deployable networks for defence and emergencies.
The first airborne 5G bubble was deployed on a military aircraft in November 2025.
The tests linked air-to-ground and air-to-air links across three independent 5G systems.
The trials demonstrated secure VoNR calls and real-time video between platforms.
Telefónica links private 5G to European security and technological sovereignty.
The BACSI project extended groundwork for airborne and terrestrial 5G integration.
Telefónica emphasizes 5G as a strategic asset for defence, security and emergency management.
Spain’s defence and industry partners collaborated with Telefónica on these trials.
Telefónica cites public-private collaboration with NATO and European partners.
The technology supports resilient communications in emergencies and civil protection.

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