Two large countries joining together won't make much of a difference. Yes, they may be powerful, but you don't get peace by forcing it on people, and definitely not by war -- this "alliance" seems to suggest armed intervention to bring peace, or at least weapon trading (and military training), which is essentially what this "alliance" is about, getting you nowhere (what else would India want from America?). You get peace by talking with adversaries, listening to everyone, and with education, and opportunities -- and not by forming an alliance of two peaceful countries, to help increase their military prowess. If America is to be serious about "instilling" peace around the world active talks need to be lead with all countries, no matter who is governing there, and also to not do anything military related. And part of the process is just time.