What effects can be expected from daily morning walks with incremental weights, like adding 1 kg every 5 days?

Starting off with 25 kg or ~55 lb. At some point, after like 4 months, I'll be walking with 49 kg on my back or 105 lb; which is around what military people carry.

But then I'll also keep increasing until I run out of weights, or eventually, I'll have to walk around with dumbbells in my hands and not just a backpack and a weighted vest.