We got attacked by a GSD

There's some new folks moved in on our street, and brought their 2 aggressive GSDs with them.

These dogs are not well controlled, and we've seen her drop the lead when they charge to attack other dogs with one of our friends getting bitten.

Today it was our turn to get attacked, and of course my absolute meatball of a dog wouldn't fight back because she's a big soft idiot.

My partner fought the dog off, but now we are apprehensive about being out and about.

Does anyone have any practical tips on how to protect my idiot? Guns/knives/pepper spray are illegal here.