  VERITAS is an imaging atmospheric Cherenkov telescope (IACT) array most
sensitive to gamma rays in the very-high-energy (VHE) energy band (85 GeV - 30
TeV). As a part of its active galactic nuclei (AGN) program, VERITAS focuses on
the identification and follow-up of AGN flares reported by other
multiwavelength observatories. Between October 15th and October 19th, 2020,
VERITAS followed up on the Fermi-LAT and MAGIC detections of a flare of the
intermediate-frequency-peaked BL Lacertae (IBL) object, B2 1811+31, located at
a redshift of z=0.117. In this work, we present preliminary scientific results
from the analysis of B2 1811+31's 2020 flare, including the corresponding
Fermi-LAT light curve and VERITAS detection analysis.
