He spoke in Brussels, Belgium, at the headquarters of the North Atlantic Treaty Organization.

他在比利时布鲁塞尔的北大西洋公约组织（以下简称北约）总部发表了讲话。

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Brussels, Belgium, the headquarters of the North Atlantic Treaty Organization.

比利时，布鲁塞尔，北大西洋公约组织总部。

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Defense ministers from the North Atlantic Treaty Organization are due to meet in Brussels later this month to discuss plans for this year's troop reductions.

WSJ: Obama to Draw Down Troops in Afghanistan

The failure to approve Mr. Hagel means that Mr. Panetta next week will travel to Brussels to represent the U.S. in meetings of the North Atlantic Treaty Organization.

WSJ: Hagel Nomination Fails to Advance in Senate