He studied at Stockholm University and received his bachelor's degree in 1972 and he served in the Swedish Army School of Staff Work and Communications (Arméns stabs- och sambandsskola, StabSbS) from 1972 to 1973. Agrell was then sent to the Middle East following the Yom Kippur War as part of the Swedish 52 M Battalion in the United Nations Emergency Force. After that he served in the Air Staff from 1974 to 1976 and was first administrative officer in the Defence Staff from 1976 to 1978. He started working at the Research Policy Institute in 1978[1] and started postgraduate studies at Lund University the same year, where he received his Ph.D. in history in 1985,[1] with a thesis about the Swedish military doctrine from 1945 to 1982. He became docent at Lund University in 1987[1] and since 2006 he is professor of intelligence analysis at Lund University.[2]
Personal life
In 1977 he married librarian Camilla Frostell [sv] (born 1952), the daughter of agronomist Hilding Frostell and Gunnel (née Brunberg).[1]
Agrell, Wilhelm (1999). Övrig illegal verksamhet: övervakningen av de svenska kärnvapenmotståndarna 1958-1968 (in Swedish). Stockholm: Wahlström & Widstrand. ISBN9146176128. LIBRIS: 7282911.
Agrell, Wilhelm (2000). Ökenvägen: minnet av krig (in Swedish). Stockholm: Carlsson. ISBN9172039221. LIBRIS: 7622494.
Agrell, Wilhelm (2002). Svenska förintelsevapen: utvecklingen av kemiska och nukleära stridsmedel 1928-1970 (in Swedish). Lund: Historiska media. ISBN9189442490. LIBRIS: 8415678.
Agrell, Wilhelm (2006). Skuggor runt Wallenberg: uppdrag i Ungern 1943-45 (in Swedish). Lund: Historiska Media. ISBN9185377597. LIBRIS: 10038725.
Agrell, Wilhelm (2006). Stockholm som spioncentral (in Swedish). Lund: Historiska media. ISBN9185377090. LIBRIS: 10142336.
Agrell, Wilhelm (2008). Maskerad front: kalla krigets underättelsehistoria (in Swedish). Lund: Historiska Media. ISBN9789185507979. LIBRIS: 10601365.
Agrell, Wilhelm (2009). Underrättelseanalysens metoder och problem: medan klockan tickar- (in Swedish) (1. uppl. ed.). Malmö: Gleerup. ISBN9789140664112. LIBRIS: 11301896.
Agrell, Wilhelm (2010). Fredens illusioner: det svenska nationella försvarets nedgång och fall 1988-2009 (in Swedish). Stockholm: Atlantis. ISBN9789173534178. LIBRIS: 11855650.
Agrell, Wilhelm (2013). Ett krig här och nu: från svensk fredsoperation till upprorsbekämpning i Afghanistan 2001-2014 (in Swedish). Stockholm: Atlantis. ISBN9789173536141. LIBRIS: 13589279.
Agrell, Wilhelm (2014). Fru Petrovas sko: en rysk spiontragedi i 50-talets Australien (in Swedish). Stockholm: Atlantis. ISBN9789173537070. LIBRIS: 16532638.
Agrell, Wilhelm (2016). Stora sabotageligan: Kominterns och Sovjetunionens underjordiska nätverk i Sverige (in Swedish). Stockholm: Atlantis. ISBN9789173538527. LIBRIS: 19424111.
Agrell, Wilhelm (2017). Sprickor i järnridån: svensk underrättelsetjänst 1944-1992 (in Swedish). Lund: Historiska media. ISBN9789175455471. LIBRIS: 20690791.
Agrell, Wilhelm (2018). Det dunkla pusslet: spionagets historia - från faraos ögon och öron till global nätspaning (in Swedish) (Första utgåvan ed.). Stockholm: Natur & Kultur. ISBN9789127151161. LIBRIS: 22330225.