The ZGMF-X56S/α Force Impulse Gundam is a Mobile Suit introduced in the anime Mobile Suit Gundam SEED Destiny. It is piloted by Shinn Asuka and later by Lunamaria Hawke.

The ZGMF-X56S/α Force Impulse Gundam is the ZGMF-X56S Impulse Gundam equipped with the α Force Silhouette pack. The Force Impulse is a general purpose MS like the original Impulse, but has extremely high mobility under gravity and in zero gravity due to the Force Silhouette's high output thrusters and large wings. This pack also enables atmospheric flight, and adds a pair of beam sabers to the Impulse's standard armaments, granting the Force Impulse high melee and ranged combat capabilities. The Force Impulse is the most commonly used form of the Impulse due to its high versatility, and it is said that its aerial combat capabilities are equivalent to the ZGMF-X10A Freedom Gundam's. The Force Impulse retains the same VPS colors as the original Impulse.