Polish Foreign Minister Radoslaw Sikorski said that Crimea is a key point in any possible peace talks between Russia and Ukraine and suggested “demilitarizing” the peninsula, Interfax-Ukraine reported on Sept. 19, citing the minister’s comments at YES conference in Kyiv. “We could put it under a U.N. mandate with a mission to prepare a fair referendum after establishing who the legal residents are and so on… And we could postpone it for 20 years,” Sikorski suggested as one possible option, according to the news agency. Russia has illegally occupied Crimea since 2014, sparking international c…