Ryan Lucas Yemeni security guards stand outside the parliament building in Sanna in 2015, the same year that a Yemeni lawmaker says he was targeted for assassination. Anssaf Ali Mayo is now suing former U.S. military members who he says were hired to kill him. Mohammed Huwais/AFP via Getty Images hide caption A Yemeni lawmaker has filed a lawsuit in U.S. federal court that alleges former American special forces operators working as mercenaries hired by the United Arab Emirates tried to kill him as part of a targeted assassination program. The case was brought in California by Anssaf Ali Mayo, a member of Yemen's parliament and a prominent figure in the Islamist al-Islah party. It was filed under the Alien Tort Statute, which allows foreigners to sue in U.S. federal court for violations of international law. While the suit is centered around the alleged attempt on Mayo's life, it raises broader questions about the actions of highly trained former U.S.…