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Republican Jim Gilmore to enter 2016 race for president

Former Virginia Gov. Jim Gilmore speaks to guests at the Iowa Freedom Summit on January 24, 2015 in Des Moines, Iowa. The summit is hosting a group of potential 2016 Republican presidential candidates to discuss core conservative principles ahead of the January 2016 Iowa Caucuses.

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Former Virginia Gov. Jim Gilmore plans to announce his presidential plans in August, joining an already crowded Republican field vying for the 2016 nomination, an aide confirms to CBS News.

"I don't think we're addressing the threat to the country," Gilmore, who served as Virginia's governor from 1998 to 2002 and as the Republican National Committee chair in 2001, said in an interview with the Richmond Times-Dispatch, which first broke the news of his announcement. "I bring to the table experience that others don't have."

In his interview with the newspaper, he cited the "emergency internationally" -- including threats from extremist group ISIS, as well as Russia's encroachment into Ukraine and China's involvement in South China Sea territories -- as a reason he is hoping to be on the Republican ticket. Gilmore, who briefly sought the Republican nomination for president in 2007, was Virginia's chief executive during the 9/11 attack on the Pentagon and also served as a U.S. Army intelligence officer. Gilmore's experience with international threats also includes his time heading the Gilmore Commission from 1999 to 2003, a Congressional advisory panel assessing U.S. response capabilities in the case of terror attacks involving weapons of mass destruction.

After his first failed presidential bid, he ran for Senate in Virginia against Democrat Mark Warner in 2008 and lost by 31 percentage points. Gilmore now serves as the president and CEO of conservative Washington think tank, the Free Congress Foundation.

With an announcement planned for August, the former Virginia governor will likely be the 17th Republican to enter the presidential race. Wisconsin Gov. Scott Walker and Ohio Gov. John Kasich both plan to declare 2016 bids by the end of July.

CBS News' Katiana Krawchenko contributed to this report.