A Shi’a revolt in Saudi Arabia could have major consequences. The Shi’a-majority Eastern province also happens to be where much of Saudi Arabia’s oil is found.
Beyond that fact, a fight in Saudi Arabia could pull more countries into the war in Yemen—most notably Pakistan. Pakistan’s Defense Minister admitted today that Saudi Arabia had asked for warships, planes, and troops to help in Yemen. Thus far, mindful of the sensitivities of its own Shi’a minority, and of its relationship with neighboring Iran, Pakistan has been unwilling to commit fully, saying it will only send troops to help defend Saudi Arabia’s territorial integrity. If conflict spreads to Saudi Arabia, Pakistan will find it difficult to maintain its delicate balancing act.(H/t Instapundit)