Direct proof of use
French government remembrance material for Operation Daguet lists 18 TRF1 towed guns among the equipment deployed with Division Daguet in the Gulf War. The same dossier places the 11e Regiment d'artillerie de Marine in the French western grouping and describes 155 mm fire and artillery support during the February 1991 advance toward Rochambeau and Al Salman.
A French artillery association history gives the artillery-specific account: Division Daguet included the 11e RAMa with 18 155 mm TRF1 pieces, and its artillery mission was to support the breakout with massed fires, strike preplanned targets, support maneuver units, and destroy identified Iraqi strongpoints.
Sources: Chemins de memoire Daguet, Base documentaire des Artilleurs Daguet
Timeline
After Iraq's invasion of Kuwait in August 1990, France deployed Division Daguet to Saudi Arabia as part of the coalition buildup. By the ground phase, the French force included the 11e RAMa and its TRF1 guns.
On February 24, 1991, the French ground offensive began. French remembrance material describes 155 mm fire during the attack on Iraqi positions around Rochambeau. On February 25, artillery support helped French marine infantry move toward Al Salman, and a heavy artillery fire mission struck the concrete runways at Al Salman airfield late that afternoon.
Sources: Chemins de memoire Daguet, Base documentaire des Artilleurs Daguet
Operational role
The TRF1's documented role was coalition fire support for French maneuver forces, not an independent long-range strike campaign. The guns supported Division Daguet's west-flank mission under the U.S. XVIII Airborne Corps as French units advanced through Iraqi defensive positions toward As Salman.
The sources support fielding and artillery-fire use by French forces, including 18 TRF1 pieces and 155 mm fires in the ground offensive. They do not provide a gun-by-gun fire log or identify every target by battery, so the most precise supported claim is that the 11e RAMa's TRF1-equipped artillery provided 155 mm fire support during the Daguet ground campaign.
Sources: Chemins de memoire Daguet, Base documentaire des Artilleurs Daguet