Pennock, W.B. RIVER CROSSING EXERCISE. Prince George, B.C. 2 SEP 43. Presented to Major-General H.N. Ganong G.O.C. 8 CDN. DIV. by Lt-Col. W.B. Pennock C.R.C.E. 8 CDN. DIV. 1943. Oblong 4to. 24pp of text, color maps, one showing the proposed crossing of Nechako River. 20 b/w snapshot photos, mounted with corners, each with captions + Appendix A, B and C of facts and figures. A large folding contemporary map of Vernon is laid in, with one of the training zones (?) highlighted on the map in a red square box. Fabricoid spine and corners.

The original typescript for a (presumably confidential and secret) document listing the preparations for defensive manoeuvres in the event of war with Japan taking place in Northern British Columbia. This document describes a simulation of what events and defences could take place, including how to conduct river crossings; when in the war game, the author imagines what would happen should the Japanese invade Prince Rupert as a starting point for the invasion of Canada.

An important document providing insight into the thinking of the Canadian military while preparing for the possibility of Japan extending its war into the North Pacific Theatre during World War II.