By Mehmet Emin Caliskan KYIV (Reuters) – Sitting on a temporary bed set up along a gloomy underground passageway, expectant mother Alena Shinkar reads a book to try to stay calm. The Ukrainian has been at a Kyiv maternity hospital since before the Russian invasion began on Feb. 24 waiting to give birth, but with the capital city under siege from rockets and missiles, her nerves are fraying. “I should not be stressed now so I am trying to cool myself down, but of course it is terrible what is happening,” she told Reuters in English. “We are living in real hell. I never imagined that something l…