KYIV — Ukraine fears it can’t rely on security guarantees from its allies in any potential peace deal , and so must be ready to stand alone as a “steel porcupine” to ensure that Russian dictator Vladimir Putin won’t return for another attack. European Commission President Ursula von der Leyen last year exhorted Kyiv to turn the country "into a steel porcupine, indigestible for present and future aggressors." That means a permanent massive army, heavy investment in the latest drone and missile