  The UAV network has recently emerged as a capable carrier for ubiquitous
wireless intelligent communication in the B5G/6G era. Nevertheless, the
separation of dual identity raises challenges from the perspective of
communication efficiency and security, including tedious communication feedback
and malicious Sybil attacks. Meanwhile, thanks to the emerging integrated
sensing and communication (ISAC) technology, the sensing ability incorporated
in communication advances crucial opportunities for accurately and efficiently
mapping identity from dual domains. This tutorial discusses the exciting
intersection of ISAC and the future intelligent and efficient UAV network. We
first describe the motivation scenario and present the framework of the
proposed novel ISAC-enabled dual identity solution. The detailed modules of
identity production, mapping, management, and authentication are discussed. By
endowing UAVs with an advanced capability: opening their eyes when
communicating with each other, we detail three typical applications and the
advantages of our proposal. Finally, a series of key enabling techniques, open
challenges, and potential solutions for ISAC-enabled dual-domain identity are
discussed. This tutorial for the intelligent and efficient UAV network brings
new insight on providing dual-domain identity via ISAC technology, with an eye
on trusted and swift communication research tailored for the 6G UAV network.
