[1] In 1994, Trenta graduated in political science at La Sapienza University of Rome.

In 2009, Trenta was recalled in service as captain in the UNIFIL mission in Lebanon and in 2012 she coordinated a project in Libya for the reduction of illegal weapons.

She is also deputy director of the Master in Intelligence and Security of Link Campus University, and has collaborated with the Military Center for Strategic Studies (CEMISS), focusing particularly on proxy wars.

[3][4] According to her curriculum, Trenta is engaged in social work through two associations of which she is vice-president: Children of Nassiriya Onlus, which carries out projects in Iraq, and the Flauto Magico.

[6] In June 2018, she was appointed Italian Minister of Defence in the government of Giuseppe Conte, who led a cabinet composed by members of the M5S and Lega.