Rin doesn't understand the meaning behind this. No matter how much she needs their help, it doesn't make sense to give them this much as a simple gift. No, she must be expecting something in return. However, to not present it as leverage in a deal and instead give it away puts them at such an advantage in this negotiation that it almost seems like a stupid mistake. But Rin refuses to believe Marguerite is that dumb, at least not anymore.
But what's even stranger is that she gave away weapons instead of something else. She understands that she didn't have the time to develop them as the war started, but wouldn't it have been better to simply hold onto these until the war inevitably ends in their favour, before developing them and becoming the number one threat in the world? This decision makes zero sense from a political standpoint. Is Marguerite insane? Or could it be...
Could it be that she has something even better?