I'm not sure you're right about that. Plenty of Russian generals are up for it, in 2008 there was very real talk about
hitting Poland over the NATO missile bases there. It's not just one guy either, Kremlin staff and Putin himself have rattled their swords about using nuclear weapons against Turkey and even Saudi in recent times. You know your military is hawkish when Putin is your balancing voice of reason.
I also think it only takes one nuclear armed despot in the middle east to go full Jihad and try to wipe out Tel Aviv; Saddam didn't have the capabilities but tried to rain down the SCUDs on Israel during the Gulf War - and I'm pretty sure given his holy-war state of mind and attitude to the Jewish state, he'd have used nukes if he had them. He wasn't afraid to indiscriminately kill civilians with chemical weapons and didn't seem the type to pull his punches.
Then there's Pakistan vs India, persistently on a knife edge and with hugely unstable and transitional government in the former. Who knows what kind of nutter might end up in power there in the next decade?
Not to mention North Korea, if you think Americans are hawkish and crazy, just consider how rational and balanced Hilary and Obama seem compared to Kim Jong-Un.