This question slightly merges into politics as there has been a push by some to reclaim Jewish remains and bring them back to Israel. This has actually already been done a few times, a famous example being the remains of Theodor Herzl at Mt. Herzl military cemetery.
Very recently, Benjamin Netanyahu asked the Lithuanian government to allow the remains of Vilna Gaon to be collected and transferred back to Israel for reburial. The request was denied and his remains are still in Lithuania.
My question: Are you actually doing a good thing by disturbing the remains of a Jew in order to have them reburied in Israel?
Being buried in Israel is certainly a blessing and I can understand why people would deem such an end preferable than being buried in foreign lands. That being said, once all burial observances are made and the body is in the ground and sealed, are you really doing a good thing by disturbing the body?
Wouldn't you risk the possibility of the remains not being kept intact during the move? Possibly even losing a piece of the person?
Halachally speaking, is it better to keep a body where it was buried (as to not disturb the remains) or is it acceptable to reclaim the remains of Jews so they can be brought back to Israel?