Kiev (AFP) - As government troops face off against pro-Russian separatists, Ukraine is also manoeuvring on the financial front, scrambling to stave off disaster by renegotiating its foreign debts.Kiev's pro-Western government owes billions of dollars to US and London-based investors, among others, as well as Russia, its rival in the current conflict that has pushed Ukraine's recession-hit economy to the brink.The International Monetary Fund has stepped in with a $17.5 billion rescue loan.