From The War Room
The Yerushalmi (Peah 1:1) says, wars are lost due to
Loshon Hora
Bavli (Erechin 15b) says, the tikun for
Loshon Hora
Is learning Torah
It (Makkos 10a) also says
Learning Torah gives strength in battle
Rashi in Divrei Hayamim (2:17) says
Learning Torah dissuades enemies from attacking
Clear enough?
Shavua Tov Yidden