Has Israel launched a ground operation into Lebanon?

Israel has announced “ground raids” into southern Lebanon, escalating its military operations inside its northern neighbour’s territory.
The attacks, supported by air strikes and artillery, commenced early Tuesday morning, and Israel said it was targeting the Lebanese armed group Hezbollah in villages near the border with Israel.
But Hezbollah denied that Israeli troops had crossed over into Lebanon, even as experts cited mounting evidence pointing to an imminent Israeli invasion.
Here’s what we know about the latest developments.
Yes, in Lebanon, Israel — and beyond.

Yes in 2006, 1982 and 1978.