Last night I took to reading the 27th dua in the sahifa and as I read its translation, perhaps due to my lack of knowledge in the aspect of Islam's view and treatment of disbelievers; much of it's excerpts left me deeply disturbed; and to quote a few:
"O Allāh, make the wombs of their women barren, dry up the loins of their men, cut off the breeding of their mounts and their cattle, and permit not their sky to rain or their earth to grow!"

"O Allāh, mix their waters with pestilence and their foods with maladies, hurl down their cities, harass them with peltings, hinder them through drought, place their supplies in the most ill-omened part of Your earth and the farthest from them, bar them from its fortresses, and strike them with constant hunger and painful illness!"

What could be deduce from these as Imam clearly mentions the names of some races like Byzantines, Indians, etc? The aforementioned excerpt and the rest of the dua reads about the protection of muslims and the destruction of idolaters and disbelievers, however aren't we meant to live in peace with our 'brothers in humanity'? Apologies, if the query seems too outlandish. I have been in a dilemma ever since I read the Dua, please help me clear my doubts and misjudgements.