Gaidheal said:One dog? Kill it. Multiple dogs? Kill one, then the next, the next.. likely get hurt, but it's your best chance. Don't run, as is said above they will chase you down and they are always faster than you, unless it's a tiny dog.. in which case why are you running? Never hesitate. Once it's defence time, it's dead doggy time. Eyes is useful, just like with people. Crush the trachea if you can ('windpipe'), strikes to it will 'worry' the dog as well, possibly making it back off, probably making it slow down even if it keeps at it. If you get it right you can kick a spot on the ribcage that will always (assuming a minimum but easily achievable level of power) fold the ribcage and kill it within a minute (a minute during which it won't be doing anything but dying)..
Sorry.......but I don't buy in to that. Ever seen dogs fight? They are extremely agile and fast, and they don't give a rat's @ss what is happening to them when they are in battle mode. Go ahead - aim for its eyes. By the time your fingers are there, you will be poking teeth instead. Against multiple dogs, especially large breeds - you're pretty well screwed. Sorry, Gaidhead but it doesn't sound like you know much about this situation. Where or who gave you this information that you will kill them with a quick kick to the ribs? The dog will most likely maneuver to absorb or completely dodge the blow anyway. We as humans are only superior to these animals in that we are smarter (or so we believe). They move faster than us, hunt better than us, smell better, etc. So humans have to rely on their brain - that's why we invented swords, knives, guns. We can't hang with wild animals without them. Evolution favored our brains over brawn.
-rompida