The Saudi Conquest of the Hedjaz
On August 29th 1925, Ibn Saud has authorised the beginning of attacks on the realms of the Sharif of Mecca, the Hedjaz. This came as an absolute surprise due to the treaty of Darin, which was signed just a decade ago, specified that the Saudi State would not attack any British Protectorate.
However the Ibn Saud had found a loophole which he had created when making the Treaty of Darin, he never promised to not attack the Hedjaz as it wasn't technically a British Protectorate. As well as the British, who were fearful of the growing power of the Hashemites among the Muslims in their colonies, allowed the invasion to happen to quell the power of the Hashemites.
This of course caused outrage in Kuwait among the Al Sabah Family, their Wahhabi rival are about to gain to two Holy Mosques! The fear that after the Hedjaz the Sheikhdom would be next. Kuwait, due to recent changes in its foreign and domestic policies, no longer apply in the same way as the nearby Bahrain and Trucial States. Kuwait is effectively an independent state unofficially, they are in the same level as the Kingdom of Hedjaz.
A few days later in September, the City of Ta'if was taken by the Ikhwan without resistance. the Sharif Hussein's son, Ali bin Hussein Al Hashimi, was supposed to defend the city from the Saudi attack, but had fled the city in a panic along with his whole force. What came after the capture of Ta'if was an indiscriminate massacre of almost 400 innocent men and women. The word of the massacre spread eventually to Kuwait where Sheikh Ahmad bin Jaber began mobilisation of the newly equipped Kuwaiti Armed Forces. The fear that the Saudis would do the same in Kuwait like they have done in Ta'if was very great, they must prepare for what they would perceive as a soon to come second Kuwait-Najd War.
Soon enough Mecca, the capital of the Hashemite Kingdom in the Hedjaz, fell to Ibn Saud and his Ikhwani army, and then followed by Medina. By then Sharif Hussein had escaped to his last stronghold, the City of Jeddah. The Siege and subsequent fall of Jeddah on January 8th 1927, more than a year after the be forced the Hedjazi Hashemite Royal Family to go into exile to Baghdad, escaping through the Red Sea.
Soon enough Ibn Saud was crowned the King of Hedjaz, much to the dismay of the Hashemites and Kuwait. Soon the Al Saud family are the holders of the Kingdom of Najd and Hedjaz.
Eventually, there has been talks between the Ikhwan leadership in invading other British protectorates such as Transjordan and Iraq. There has also been talks to invade the Sheikhdom of Kuwait, due to fears of its growing power in the region.
A war is coming to the Gulf once more. This war however will be bigger than the last one, Guns will be used for the first time in the Gulf between Arab Nations in a large scale.
This however was dashed when the plan was presented to Ibn Saud as he did not want to anger the British. While Ibn Saud wanted to unite the Arabian Peninsula under Wahhabism, he was not a stupid man, he knew he was no match for the British in an major war.
The Ikhwan were outraged, they wanted to expand the borders to encompass on all of Arabia under the Flag of Abdul Wahhab. Not even a King can stop them.
And so they gathered as much men as they can and marched towards Hafr Al Batin, Kuwait. Little did they know that this will exact upon them unwanted consequences.