The Israeli Army is not an invading army. It's a liberating army. Hebron has always been a Jewish city and the army is there to not rule over Arabs, but to protect the Jews living there who are under constant threat of being murdered by Arabs. There is no nation that Israel is occupying. There has never been a sovereign nation in the land where Hebron is besides Israel.
IDF strikes Gaza targets in response to rocket fire (Haaretz)
from the article: Israeli soldier killed in apparent sniper shooting near Hebron