Sipri 
Outer Space – Battlefield of the Future? [PDF ebook] 

This book, first published in 1978, examines the military use of space – around 60 per cent of US and Soviet satellites were military ones. The satellites were for military communications, weather prediction, navigation, photographic and electronic reconnaissance, targeting, early warning, and satellites capable of destroying enemy satellites. This book analyses the capabilities of military satellites as part of the debate around the encroachment of military technology and purposes into space.