Security matters are treated with the utmost seriousness.

安全问题受到极为严肃的对待。

《柯林斯英汉双解大词典》

Collaborate with your competitors on security matters.

与竞争者联合应对安全事务。

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So on security matters, we are eager to strengthen the ASEAN Regional Forum.

因此，在安全问题上我们渴望加强东南亚国家联盟地区论坛（ASEAN Regional Forum）。

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The U.S.Institute of Peace study notes that the United States has little choice but to cooperate with Egypt, Saudi Arabia,Jordan and Pakistan in diplomatic, military,and security matters.

VOA: standard.2010.05.19

He will hold his first bilateral meeting of the trip with Japanese Prime Minister Yukio Hatoyama talks that are likely to focus on economic and security matters.

VOA: standard.2009.11.12

On ABC's This Week, Cheney defended his stance, adding now that he is out of office, he sees no reason to remain silent on matters of national security.

VOA: standard.2010.02.14

Some think it is anyway time that Europe stepped out of America's shadow in security matters.

ECONOMIST: Pulling together, or pulling apart?

More to the point, the public tends to regard Republicans as more responsible on national-security matters.

CENTERFORSECURITYPOLICY: Center For Security Policy

We noted our support for the efforts of ASEAN and the ARF in addressing cyber security matters.

WHITEHOUSE: Joint Statement of the 4th ASEAN-U.S. Leaders' Meeting