LSE vs US Universities for International Affairs Masters?

[some117]

What are everyone's thoughts on LSE vs top US programs for international affairs-related masters? I'm particularly interested in opinions regarding education quality, transferable skills, and career prospects. I have an offer from LSE for their MSc Conflict Studies, and am debating whether to accept it or to return to the US and apply for grad programs there.

A little bit about me: I recently graduated from Oxford with a first (4.0 equivalent) for my BA. I'm American, have done multiple internships (public sector + multilaterals), and am interested in a career in humanitarian policy/conflict analysis and resolution. I figure that I'll likely have to work full-time for a bit to be competitive for the best US programs. The American nationality is my major concern, since it would preclude me from working in any UK government contexts if I went to LSE, but my dream would be to work internationally (UN, INGO, foreign service, etc). Doing a masters in the US seems to make more sense for the connections I'd get, but I'm wondering whether LSE might offer more international prospects (and it's difficult to deny the fact that it'd be faster and cheaper).

Thanks for your help!