Here in Europe the Warmblood is a loose term used to define many different breeds that are primarily used for competitions. Most of them can trace bloodlines back to the three arabian imports to the UK in times gone by ( goldolphin arabian / darley arabian / byerley turk ) . The warmblood is not a specific breed all by itself - there are dozens of breeds that could be described as a warmblood, and dozens of crossbred horses that don't have a 'breed designation' but are no doubt a warmblood.
The 2 horses pictured are a good example of this
One is a hungarian sportshorse that can trace her bloodlines from both parents to the aforementioned arabs - the other is no specific breed at all and can only trace her fathers bloodlines to the three.
Hungarian sportshorse ( TB x Trakhener ) Ingrid ( 10 yr Hungarian sportshorse ).jpg
No Breed at all ( kisber X unknown ) Greta.jpg