Chapter 219: chain reaction
Land-of-Whirlpools, or Uzumaki Clan, is considered by most influences as a nail in the eyes, and it is necessary to destroy 'he'. The main reasons are as follows.
1) Their Bloodline, their clan member, serves as the best candidate of Jinchuriki.
In the Great Ninja Villages at the time, including Hidden Sand Village, Hidden Cloud Village, etc., there was a lot of turmoil in Tailed Beast, so they had to hit their heads on Uzumaki Clan.
2) They have a powerful Sealing Jutsu that makes the major influences extremely fearful and headache.
Sealing Jutsu; in the whole Ninja World, it can be said that Uzumaki Clan is the best. The rest of Ninja Villages said they control Tailed Beast, but in front of Uzumaki Clan, those Tailed Beasts become a joke.
So they had to either destroy or seize Sealing Jutsu of Uzumaki Clan.
3) Time, place, and harmony.
At that time, Uzumaki Clan sent a lot of troops to support Konoha during the Second Shinobi World War period. After the Second Shinobi World War is over, they are in the weakest period. If you attack them during this period, you may get the maximum return without paying much.
Plus Konoha's ambiguous attitude ...