Churchill's greatest shock: What lead to the sinking of Force Z?

Churchill described the sinking of HMS Prince of Wales and HMS Repulse as the greatest shock that he had received during the war. It left both the Indian and Pacific oceans almost devoid of Allied Naval power. What were the mistakes that had been made during the Second World War? What role did Churchill himself play in the loss of Force Z?

We look at Concentration and how this Principle of War was managed both by the Japanese and by the Allies.
What were the considerations behind the deployment of Force Z (and where was HMS Illustrious?)
This is an excellent example of the risks of ignoring Concentration and yet the Japanese did the exact same thing. Too few forces for the task at hand - they were well and truly outnumbered, especially considering the scale of the offensive they had to conduct. And yet LTGEN Yamashita's risk was mitigated. What were the tactical mitigations for this operational risk?

Excellent joint professional military education for large-scale combat operations.

00:00 Introduction: Ignoring the Principle of Concentration
00:47 Japanese and British Strategic Priorities
02:16 Force Z and Churchill's Strategic Gamble
04:35 The First Strike of the Pacific War: RAAF at Kota Bharu
06:11 Force Z Sails Without Air Cover
07:53 Admiral Tom Phillips and the Pursuit of the Japanese Fleet
08:43 The Kuantan Diversion: A Fatal Mistake
09:35 The Sinking of Prince of Wales and Repulse
11:32 Churchill's Reaction and Strategic Consequences
13:17 Lessons from the Sinking: Air Power and Command Decisions
15:14 Strategic Options Ignored and Their Fallout
17:04 Maneuver Warfare and the OODA Loop Collapse
18:35 Japanese Concentration of Force: Air Superiority
20:16 Understrength Japanese Ground Forces
22:06 Japanese Tactics: Recon Pull and Infiltration
23:59 Japanese Doctrine: Audacity and Missed Allied Opportunities
24:57 ‘Read This Alone’ – The Japanese Jungle Warfare Manual
26:43 Morale and Discipline in the IJA
27:29 Doctrine, Hygiene, and Jungle Logistics
28:20 Combined Arms: Tanks vs Artillery Doctrine
29:24 Morale Overmatch and Conclusion