Neighbors dog bite my dog what can I do what are the laws I'm in America there dogs large dogs attacked my dog on my property

I had to take to the emergency veterinarian $2,000

What can I do can I ask them to give the animal clinic there financial information do call the police do I also call animal control

Emotionally how do I handle this my hands are trembling I feel like crying I don't understand why the dogs attacked he's a small sweet dog was using the bathroom in the front yard on our property when the dogs attacked was unexpected it hurts to know the animals did this.

What can I say to the neighbors legally how do I hold them responsible for the dog attack they could have harmed me it's frightening