Admiral Graf Spee might try to fight through the cruiser blockade. HMS Renown was intended to stop such a breakout. The German ship had already suffered damage, and a fast battlecruiser would be a much more difficult opponent. This gives Renown a clear purpose among the reinforcements, even if the cruisers were probably sufficient to maintain the blockade.
Notable Point · 0:35-0:43
Renown's role in stopping a breakout
HMS Renown was intended to stop Admiral Graf Spee if it tried to fight its way out of Montevideo.