Best comparison might be the Kalahari Bushmen. From what I read, subsistence took two hours of work a day; the rest of the day was spent with families, visiting, etc. Makes you wonder why we ever went into agriculture (Personally, I think it had something to do with beer...).
But the same square footage can support 10 unhealthy less well nourished agriculturalists for every 1 robust hunter gatherer.
So when it comes to war, the trend of history has been for those 10 agriculturalists to beat the tar out of and replace that 1 hunter gatherer.
As Teddy Roosevelt pointed out ‘it is ridiculous to assume that the North American continent would remain the last great refuge on earth of a hunter gatherer (and horticulturalist) society’.