Members of Ukraine's Territorial Defense Forces, volunteer military units of the Armed Forces, train in a city park in Kyiv, Ukraine. Dozens of civilians have been joining Ukraine's army reserves in recent weeks amid fears about Russian invasion.
Ukrainian soldiers in a trench shelter on the line of separation from pro-Russian rebels, Mariupol, Donetsk region, Ukraine.
Ukrainian soldiers stand on a check-point close to the line of separation from pro-Russian rebels, Mariupol, Donetsk region, Ukraine.
A Ukrainian soldier in the trench on the line of separation from pro-Russian rebels, Mariupol, Donetsk region, Ukraine.
Members of Ukraine's Territorial Defense Forces, volunteer military units of the Armed Forces, train in a city park in Kyiv, Ukraine.
Members of Ukraine's Territorial Defense Forces, volunteer military units of the Armed Forces, train in a city park in Kyiv, Ukraine.
Members of Ukraine's Territorial Defense Forces, volunteer military units of the Armed Forces, train in a city park in Kyiv, Ukraine.
Members of Ukraine's Territorial Defense Forces, volunteer military units of the Armed Forces, train in a city park in Kyiv, Ukraine.
A Ukrainian serviceman patrols a street near frontline with with Russia-backed separatists in Verkhnotoretske village in Yasynuvata district, Donetsk region, eastern Ukraine.
Ukrainian servicemen greet each other as they patrol a street in Verkhnotoretske village in Yasynuvata district, Donetsk region, eastern Ukraine.
