[X] Don't - Let them fight it out. If a Nascent Soul chooses to intervene, do so as well - on your home ground, prepared and ready. You are too valuable to the Clan to risk at this point. Not to valuable to risk, of course, just not at this moment.
[X] Yes - Send her what she wishes. It should allow her to prosecute the war reasonably successfully. You will bleed for the Hua, but you won't die for them.