India’s aspiration to acquire a fifth-generation fighter jet from Russia to match the capabilities of China and Pakistan hinges on a geopolitical decision: whether New Delhi is prepared to overlook US and European sanctions against Moscow.AdvertisementThe Sukhoi-57, a fifth-generation Russian jet, is the choice of the Indian Air Force as a ‘stopgap’ measure till India's indigenous fifth-generation fighter jet, the Advanced Medium Combat Aircraft (AMCA), becomes operational in a decade. The IAF and the Ministry of Defence (MoD), in the past 6-8 months, have discussed acquiring 80-100 Sukhoi-57 fighter jets, sources said adding that a decision has not been made…