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Two ex-boxing world
have vowed to take up
to help defend their capital Kyiv. They are Vitali Klitschko, 50, and his
Wladimir, 45, both Ukrainian. Vitali is Kyiv's
. He was world heavyweight champion for a
. He said: "I don't have any
....I'll be fighting. It's already a
war." Wladimir tweeted: "Destruction and
come upon us....We will defend
with all our
and fight for freedom and democracy."
