I googled 'Hezbollah'.
Hezbollah was conceived by Muslim clerics and funded by Iran primarily to harass Israel.
Well, that's Wiki for you. That could have been slipped in by Red a minute before you got there, and removed right after.
Hezbollah was designed to resist Israel's occupation of southern Lebanon (it's a tiny country, Israel controlled nearly half, I believe). Israel invaded Lebanon in 1982 and stayed for 17 years. Hezbollah was formed in 1985 as a resistance movement. So while that sentence isn't exactly untrue, it misses all of the context. Hezbollah was conceived to harass Israel out of its occupation of Lebanon, which it basically did after a protracted decades long struggle.
Btw, the result is that Lebanon -- which had a 2nd civil war foisted on it by Israel and experienced a high degree of death and destruction over 17 years -- is very anti-Israel. Even won't allow anyone to enter Lebanon if they've been to Israel. [this has cropped up with regard to Ghosn the fugitive car exec who recently fled Japan and escaped back to Lebanon, but has been in Israel promoting some car ventures).
Also, Lebanon has never really recovered from 17 years of war, and has had a tough time repairing its infrastructure and getting back to normal. Mostly they've run up huge debts and the money they were receiving from Iran has dried up as sanctions poison Iran's economy. The result is that there are large protests against the Lebanese gov't (largely peaceful, unlike say Iraq or Egypt or of course Syria) and the PM resigned. So in that way, Trump's economic warfare on Iran has had consequences. Though so far Hezbollah hasn't been weakened much, and I suspect they get money from Assad for being Syrian mercenaries. From the Lebanese civil war against Israel occupation, Hezbollah got battle-tested and professional, unlike Syria's shoddy national army.
As for Iran and nukes, you can see why nuclear weapons are appealing. You have one as in North Korea, Israel and Pakistan and nobody will invade your country. You don't as with Libya, Iraq, Ukraine and some folks might invade and/or kill your leaders.