"And just where did this strange united front come from?"
When times are tough, you can either band together to create a strong united front or start turning on each other.
Oh, we don't rule out anyone going our way; it's a united front.
A united front against all of that and more, no matter what conflicting forces might be building up inside.
A united front would be presented to the public.
A united front is absolutely essential for survival in that quarter.
There were to be no united fronts against a greater enemy.
A united international front must take a clear position against this.
Obviously if these parties are dissolved into one big national party the working class may then start thinking of building their own united front.
A united front was to be formed with the Nationalists.