EXCLUSIVE: Brazil could join the U.S.-led effort to combat drug cartels if presidential candidate Flávio Bolsonaro wins the country’s Oct. 25 runoff election, according to his brother, Brazilian politician Eduardo Bolsonaro. The initiative, known as the Shield of the Americas, is designed to expand security cooperation among countries in the Western Hemisphere, including intelligence sharing, military coordination and joint efforts to disrupt cartel financing. The coalition follows the...

President Donald Trump’s escalating trade fight with Canada is squeezing the economy north of the border, threatening jobs and adding to families’ financial strain as steep U.S. tariffs on roughly $20 billion in goods remain in place. U.S. tariffs have hammered the country’s steel, aluminum, lumber and automobile producers that depend heavily on the American market. Steel exports have fallen by roughly half since the tariffs took effect,...

The Trump administration is targeting testosterone deficiency as a potential threat to military readiness, rolling out new screening guidelines for male service members amid growing concerns about the health of American men and the shrinking pool of young people qualified to serve. “There is absolutely a national defense readiness ramifications for [low testosterone],” Adm. Brian Christine, a senior Department of Health and Human Services official, told Fox News...