Not a John le Carre book title, but some of the innovative mobile services that Israelis have developed to provide IDF soldiers with basic necessities. Thanks to Brothers and Sisters for Israel, (see here) the NGO Restart (see here), Rabbi Shai Graucher (see here), and Bentov Ellipsis.
https://nocamels.com/2023/12/beds-baths-beyond-israelis-get-creative-to-support-the-troops/
https://www.youtube.com/watch?v=nPIQpTKUg1k