The Sa’dah War in Yemen appears to be over, for now at least. The rebels have agreed to stop fighting the government and Yemen’s Saudi allies. This now allows the Yemen gov. to concentrate on the al-Qaida threat and the Southern secessionists. http://www.historyguy.com/yemen_saada_war.htm
Yemen has long been connected to the family of Osama bin Laden and his al-Qaida terrorist organization. The bin Laden family originated in Yemen prior to settling in Saudi Arabia and becoming wealthy in the construction business. Like Afghanistan and Somalia, other favorite bases for al-Qaida, Yemen status as a nation with a fairly weak central government and the frequent conflicts inside Yemen’s borders makes the poor Arabian nation a good location for al-Qaida to hide, recruit, and plan further attacks on the West and on others. In October of 2000, al-Qaida operatives rammed a small boat into the side of an American warship, the USS Cole, blasting a hole in the side of the ship and killing 17 American sailors. A year later, in October, 2002, al-Qaida attacked a French oil tanker, killing one, and causing the spillage of 100,000 gallons of oil. In September, 2008, al-Qaida attacked the U.S. Embassy in Sana’a in a car bomb attack followed by a gun battle with Embassy guards. The Yemeni government has worked with the United States since the September 11, 2001 attacks on the U.S. in combating the al-Qaida presence in Yemen. In 2002, an American Predator drone controlled by the Central Intelligence Agency destroyed a vehicle in Yemen containing several al-Qaida operatives. Airstrikes against al-Qaida targets in Yemen in 2009, prior to the Christmas Day airliner attack, are believed to have been conducted with significant American aid, though officially the attacks were conducted by the Yemeni government.
In early January, 2010, General David Petraeus,..READ THE REST OF THE ARTICLE AT: http://www.historyguy.com/yemen_history_wars_politics.htm

Saudi Arabia and Yemen are two arabic speaking Sunni
Muslim-majority nations on the Arabian penisula with a
long history of hostility toward each other. However,
both nations are battling al-Qaida rebels, and both have
concerns about the growing influence of Shiite-majority
Iran and its growing influence in the Arab world. Yemen
has battled a local Shiite insurgency (called the Houthi
Rebellion or the Saadah Insurgency), in the northernmost
region of the country near the Saudi border.
As the Shiite rebellion in Yemen grew, and appeared to
be receiving aid from Saudi Arabia’s rival, Iran, the
Saudis in turn aided the Yemeni government. The Yemeni
rebels launched an incursion into Saudi Arabia in early
November, and a Saudi soldier was killed by the so-called
al-Houthi rebels along the border on Novermber 4, 2009,
and on November 6, Saudi forces openly intervened in the
Yemeni war with air strikes near the border and artillery
fire on rebel positions inside Yemen.
Saudi officials reported that as of Nov. 8, Saudi
military casualties included three killed, 15 wounded,
and four missing. Saudi Arabia claimed to have regained
control Saudi territory seized by the Yemeni rebels the
week before. Smoke from airstrikes rose above the Jebel
al-Dukhan, a 6,600-foot tall mountain on the border
between Saudi Arabia and Yemen, near the town of
Al-Khubah.
video of a Saudi
warplane over Yemen border
Web and News
Links on the Saudi-Yemen Border Wars:
http://www.historyguy.com/Saudi_Yemen_Border_Conflict_2009.htm
Saudi and Yemen battle Zaidi rebels–AFP, Nov. 8, 2009
Saudi Arabia says regains area seized by Yemen
rebels–Reuters, Nov. 8, 2009
Saudi
Forces Bomb Yemeni Rebels on Southern Border –Wall
Street Journal, Nov. 7, 2009
Houthis
Capture Saudi Soldiers, Saudi Bombing Yemen for Third
Day–Nov. 6, 2009
CIA
Factbook on Country or
conflict
–Click
on the country name (Yemen) at this site.
Security
Incidents in Yemen, 1998–From
the Al-bab website.
Tiny
Voices Defy Child Marriage in
Yemen–June
29, 2008
Massive
protest in south Yemen–by
Jane Novak, for the Long War Journal, May 27,
2008
Yemen’s
Intifada–by
Jane Novak, for the Long War Journal, January 2,
2008
The Sa’dah insurgency in northern Yemen began in June of 2004 with a rebellion led by the Shiite cleric Hussein Badreddin al-Houthi, head of the Shi‘a Zaidiyyah sect. Most of the fighting has taken place in Sa’dah Governorate (province) in northwesternmost Yemen.
In November of 2009, the Sa’ada insurgency took on an alarming new dimension, as Saudi Arabia openly intervened to aid the Yemeni government with air strikes and artillery barrages on the Shiite rebels. Analysts see the Saudi participation partly as a pre-emptive strike to prevent the war from actually spreading into Saudi territory, but also as a move against Iran, which is believed to be aiding the rebels. Saudi Arabia and Iran have engaged in a long-running proxy conflict in the Gulf region, in the Iraqi civil war, and also in Lebanon, where Iran backs Hezbollah, and the Saudis support the Lebanese government.
Of interest is the fact that Saudi Arabia is aiding Yemen at all, given the fact they have a long history of dislike toward each other, but the mutual threat from both Iran and al-Qaida (and their mutual alliance with the U.S.) appears to trump past history.
See also: