No alternative

[rollingstone]

What is the correct idiom for a situation where there is no alternative but you are compelled to follow a certain line of action, in other words no alternative.

 

[Rover_KE]

You can consider 'It's Hobson's choice' or 'Take it or leave it'.

 

[GoesStation]

Sadly, we Americans don't use the expression "Hobson's choice".

 

[jutfrank]

I have no choice.
I don't have any choice.
I don't have a choice.

 

[Charlie Bernstein]

What is the correct idiom for a situation where there is no alternative and you are compelled to follow a certain course of action[STRIKE], in other words no alternative[/STRIKE].

Those aren't other words. You already used them, so they're the same words.

There is no choice.

There is no way around it.

It can't be avoided.

It's unavoidable.

It's a given.

It's inevitable.