Russian President Vladimir Putin, center, is greeted at Hanover's airport, April 7, 2013.

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Russian President Vladimir Putin, right, and German Chancellor Angela Merkel at the working dinner at Lower Saxony government's Reception House, April 7, 2013.

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Russian President Vladimir Putin, 3rd right, and German Chancellor Angela Merkel, 3rd left, at the working dinner at Lower Saxony government's Reception House, April 7, 2013. From right: Russian President's spokesman Dmitry Peskov and Presidential Aide Elvira Nabiullina.

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Russian President Vladimir Putin, right, and German Chancellor Angela Merkel at the working dinner at Lower Saxony government's Reception House, April 7, 2013. Left: Prime Minister of Lower Saxony, Stephan Weil.

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German Chancellor Angela Merkel speaks at the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin speaks at the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin speaks at the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin speaks at the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin speaks at the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin, center, and German Chancellor Angela Merkel attend the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin, 2nd left, and German Chancellor Angela Merkel attend the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin signs the distinguished visitors' book before the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013. Left: German Chancellor Angela Merkel.

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Russian President Vladimir Putin signs the distinguished visitors' book before the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin and German Chancellor Angela Merkel, center, at their meeting before the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin, center left, and German Chancellor Angela Merkel at their meeting before the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin and German Chancellor Angela Merkel at their meeting before the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin and German Chancellor Angela Merkel at their meeting before the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin and German Chancellor Angela Merkel at their meeting before the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin and German Chancellor Angela Merkel at their meeting before the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin, 2nd left, upon arriving at Hanover's airport, April 7, 2013.

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The plane carrying Russian President Vladimir Putin, center, seen at Hannover's airport, April 7, 2013.

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Russian President Vladimir Putin and German Chancellor Angela Merkel attend the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin and German Chancellor Angela Merkel attend the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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Russian President Vladimir Putin and German Chancellor Angela Merkel attend the opening ceremony of the Hanover Industrial Trade Fair at the Congress Center, April 7, 2013.

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