Insignia Description
A Silver color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of a shield blazoned:  Azure, a sea gull Volant Argent.  Attached below the shield is a Silver scroll inscribed “FORTIOR EX ASPERIS” in Black letters.

Symbolism
The shield is blue for Infantry.  The sea gull symbolizes the earlier allocation of the 413th Infantry to the Great Salt Lake region with headquarters in Salt Lake City, Utah.  The legend of the gull in the Salt Lake Valley is that when the pioneers first settled in the Valley the first crops were planted and had begun to grow when millions of grasshoppers came and began to devour them.  The people were very much depressed and prayed that something would be done to rid them of the grasshoppers.  In answer to their prayers the gulls came by the thousands and quickly exterminated the grasshoppers thus saving the crops.  The motto translates to “Stronger After Difficulties.”

History
The distinctive unit insignia was originally approved for the 413th Infantry Regiment on 20 June 1927.  It was redesignated for the 413th Regiment on 2 August 1960.

Source: The US Army Institute of Heraldry