Solved Violets or violet look alike weeds

Hi these look like violets they are growing everywhere they seem to be strangling my other plants I haven't planted violets in my garden
or could they be weeds that look like violets coming from the garden next door ?

 

Yes Viola...common name Violet
The seeds may have been brought in by ants from elsewhere.

Viola (plant) - Wikipedia

 

Yes violets and yes they spread like mad and crowd out other things, I regularly pull out masses of them.

 

Thanks don't mind them in the rockery at the bottom of garden but else where in the garden I will get rid of them and I did have a nest of ants in the grass a while ago I got rid of it with diluted cider vinegar and coffee they went elsewhere So most likely they bought some seeds