Russia's attack on Ukraine has killed at least 50 people, including 40 soldiers, and imposed martial law in the countryKiev: At least 50 people, including 40 soldiers, were killed in a Russian attack on Ukraine.According to a statement issued by the Ukrainian presidency, 40 soldiers and 10 civilians have been killed so far in the Russian offensive. Ukraine has claimed to have destroyed five Russian planes and a helicopter in retaliation.Russian officials say their ground forces have entered various...