Switzerland remains firm: no export of Leopard tanks to Ukraine, emphasizing its commitment to neutrality.
Leopard 2 - Wikipedia
Switzerland refuses to transfer tanks to Ukraine due to neutrality
Switzerland Rejects Sale of Leopard 1 Tanks Bound for Ukraine
Switzerland Blocks Sale of Leopard 1 Tanks Bound for Ukraine
Swiss parliament passes new decision on re-export of weapons to
Why Germany Is Reluctant to Send Tanks to Ukraine - WSJ
Swiss government rejects re-sale of old tanks to Ukraine - SWI
Are anti-tank weapons gifted to Ukraine going to leave Europeans
Swiss-made ammunition for Germany's Gepard anti-aircraft tank.
The Good, the Bad and the Ugly: Assessing a Year of Military Aid
Switzerland rejected a request to sell almost 100 Leopard 1 tanks to
US decides against sending tanks to Ukraine in aid package
Switzerland refuses to budge on German ammunition request - SWI
Switzerland prohibits Germany from supplying Gepard ammunition