Re: Star Trek-RM: Let That Be Your Last Battlefield… Grade/D
Blatant is an understatement. There are times Star Trek does social commentary, and there are times it repeatedly knocks you upside the head with its message.
"Let This Be Your Last Battlefield" is the latter. When Sulu is thinking of racial persecution, why is it the mid-twentieth century that comes to mind? There are certainly worse periods - citing from American history alone, the 1860s. This is because the episode is a thinly veiled comment on the current political climate and makes little pretense at being otherwise. Lokai speaks of having to fight in the wars of Bele's people; an obvious reference to both conscription and Vietnam. But in the plot of the episode it's a misnomer: Wars? Against whom? Cheron is ultimately destroyed from within and there is no other mention of this enemy - it's appropriating contemporary rhetoric without really tailoring it to the narrative.
Still, I'm going to give it some credit: The idea of people who are white on one side and black on the other - and hating each other on the basis of which side is black and which is white - was inspired. It's a subtle difference the audience may not notice at first, and so they would be as genuinely surprised as Kirk when Bele offers his explanation - in itself, a clever satire on how ludricous the basis of judging people by their skin colour is.
And the episode ends on a dark, nihilistic note, reflecting no doubt cynicism at the current state of race relations and a warning about violence as the direct result of this hatred. (The one note of optimism is that Sulu notes that in humanity's history these problems were overcome, clearly the fate of Cheron as the cautionary alternative.) Obviously a reference to the American situation, but it could equally apply to Northern Ireland, where protests for Civil Rights quickly turned violent with the appropriation of the cause by the IRA on one side and the brutality of the B Specials and other dubious militia on the other. It's one of season three's best episodes, though that may be condeming it with faint praise.