Following the kings abduction in 1940, Marshall Ion Antonescu seized power with the help of the IronGuard, but soon found himself in disagreement with it.
He suppressed (1941) an IronGuard rebellion, and Horia Sima, then leader of the Guard and vice premier, fled to Germany.
With the collapse of the Axis Powers in World War II the IronGuard disappeared from Romanian politics.
The IronGuard is the name most commonly given in English to an ultra-nationalist anti-Semitic, fascist movement and political party in Romania in the period from 1927 into the early part of World War II.
The main symbol used by the IronGuard was a triple cross (a variant of the triple parted and fretted one), standing for prison bars (as a badge of martyrdom), and sometimes referred to as the "Archangel MichaelCross" (Crucea Arhanghelului Mihail).
On December 10, 1933 the Romanian Liberal Prime Minister Ion Duca banned the IronGuard;IronGuard members retaliated on December 29, 1933 by assassinating Duca on the platform of the Sinaia railway station.