There is an armed conflict (usually described with the word war) between Hezbollah and Israel, which has been ongoing and escalating since October 8th, when the prior launched attacks against Israel in support of the Hamas attack on October 7th.
Hezbollah is conducting its warfare from territories considered part of Lebanon, but de facto militarily controlled by Hezbollah.
Israels declared intent is to fight Hezbollah, not Lebanon. As Hezbollah is not a sovereign nation, no declaration of war is necessary. (If the concept of an undeclared war is confusing to any reader, they should read up on it, most wars since WW2 have been undeclared)
The withdrawal of the Lebanese military where the IDF operates further indicates that this is not a conflict between Lebanon and Israel.
Long story short, this is a war in Lebanon between Israel and Hezbollah where Israeli forces are invading.
https://www.nytimes.com/2024/10/01/world/middleeast/lebanon-government-failure-israeli-strikes.html
Unfortunately, large sections of the Fediverse are slowly turning into bubbled echo chambers, each enforcing their own purist “correctness”.
They’re throwing anybody with remotely different opinions out the window whilst slowly shifting their overton window off into fantasy land.