Valmiki Ramayana 6.79.18

कत्थसे किं वृथा रक्षो बहून्यसदृशानि तु।न रणे शक्यते जेतुं विना युद्धेन वाग्बलात्॥

katthase kiṃ vṛthā rakṣo bahūnyasadṛśāni tu |na raṇe śakyate jetuṃ vinā yuddhena vāgbalāt ||

Our plain-language meaning of this verse is waiting for scholar review.