Why did the Houthi attack Saudi Arabia?

Explanation:

The Houthi–Saudi Arabian conflict is an ongoing armed conflict between the Royal Saudi Armed Forces and Yemeni Houthi forces that has been taking place in the Arabian Peninsula, including the southern Saudi regions of Asir, Jizan, and Najran, and northern Yemeni governorates of Saada, AL-Jawf, and Hajjah, since the onset of the Saudi Arabian-led intervention in Yemen in 2015.

answer; genetics;

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.