Form square reaction

[alopex]

When charged by cavalery, can every unit try to form a square as a reaction to the charge or only those with the special rule?

[grant]

When charged by cavalery, can every unit try to form a square as a reaction to the charge or only those with the special rule?

I believe just those with the rule. Otherwise cavalry would try and form square, which would be silly!

[ady2650]

troops with must form square have to do so and this in the main refers to Napoleonic infantry, that said there were occasions when earlier period formations would form square, I think this is mentioned in the rules battalion squares, which means that you can with other period infantry as a choice rather than a must, word of warning though, make sure there is historical president

[grant]

Also, Brigade Squares were used often in the Sudan. Massive things. Saw off many a Fuzzy!