If you want a book, 100 Years War on Palestine does an excellent job going over everything up to 2017.

Very in-depth, full picture of everything that's happened from 1917 (what just about everyone considers to be the beginning of the modern conflict), including errors and crimes committed by both sides. The author is Palestinian and obviously not neutral, but is far from extremist, and comes at things with a historical/academic rigor.

There are many other books/resources of course, but at least as far as getting a decent idea of what actually happened thus far, it's a very good history of the conflict, major players and the geopolitics associated.