  What does it mean to be responsible and responsive when developing and
deploying trusted autonomous systems in Defence? In this short reflective
article, we describe a case study of building a trusted autonomous system -
Athena AI - within an industry-led, government-funded project with diverse
collaborators and stakeholders. Using this case study, we draw out lessons on
the value and impact of embedding responsible research and innovation-aligned,
ethics-by-design approaches and principles throughout the development of
technology at high translation readiness levels.
