adj.surrounded by hostile forces

"the besieged town"

Internet besieged: countering cyberspace scofflaws
Besieged: School Boards and the Future of Education Politics
Community Besieged:The Anglophone Minority and the Politics of Quebec
Haven In A Heartless World: The Family Besieged
The self besieged: Recruitment-indoctrination processes in restrictive groups.
The medical colleges in Australia: besieged but bearing up.
Progress reports The besieged body: geographies of retailing and consumption
Profiling a besieged flora: endemic and threatened plants of the Cape Peninsula, South Africa
Book Review:The Atom Besieged: Extraparliamentary Dissent in France and Germany Dorothy Nelkin, Michael Pollak
Masculinity Besieged? Issues of Modernity and Male Subjectivity in Chinese Literature of the Late Twentieth Century by Xueping Zhong