Actually Singapore uses Oto Melara weapons on their vessels. Their air forces also use Italian M-346. Plus SIAI-Marchetti S.211 was in service in Singapore.
If that’s the case then Singapore used at least one weapon systems from all nations in War Thunder except for China and Japan
Captured only counts if they use that vehicle, not for only display.
For example the T-54 syrian captured tank by israel
The Singaporean M-346 is an unarmed trainer variant last I checked
+1 for Israel
Ngl SG doesnt have so many unique things to offer to Israel, they already have the F-16, F-15, A-4, AH-64, F-35, and the Hunter AFV is very similar to a modified M113 with 25mm and 30mm Bushmaster that Israel used (and some Elbit upgrades to other countries), the only thing unique I can think its the leopard 2 SG.
Israel can get more variety from Chile or Turkey.
Lets just say isrsel and turkey arent quite in a good relationship either, as i u derstood it
Their military relations weren’t that bad. The Sabra and F-4E Terminator are good examples. They’ve also done smaller things like upgrading their F-5s for trainer purposes. However their relations soured quite a bit since then.