All over the middle East militant Salafis affiliated with the Wahhabi „branch“ of Sunni Islam, which is a radical minority interpretation within Sunni Islam, are killing Shias but also moderate Sunnis whom they accuse of tolerating or supporting Shias.
The rise of these clearly sectarian killings is a direct result of more and more disturbing anti-Shia and anti-Iran fatwas by radical Sunni clerics in Egypt, Qatar, Kuwait and Saudi Arabia, among them some high profile people like Yusuf al-Qaradawi.
The incitement towards hatred and violence against Shias is happening with full knowledge and approval of western supported arab monarchies of the Persian Gulf. Hardly any criticism is coming from western politicians, let alone any sanctions. Instead the very same hatemongering jihadist supporting countries are appeased and „rewarded“ with more and more western weapons contracts.
16 lebanese soldiers killed:
This is not the first time armed loyalists of Salafi lebanese cleric al-Assir have killed lebanese soldiers claiming that they are neutral towards Hezbollah:
http://www.bbc.co.uk/news/world-middle-east-23025136
Egypt mob attack kills four Shia Muslims near Cairo
http://www.bbc.co.uk/news/world-middle-east-23026865
Attack on Iraq Shia mosque near Baghdad kills 14
http://www.bbc.co.uk/news/world-middle-east-23017518
http://www.bbc.co.uk/news/world-asia-22999668
Suicide bomb attack on Pakistan Shia mosque ‚kills 14‘
Western and (gulf) arab attempts to explain or even justify the growing anti-Shia/anti-Iranian violence by pointing towards the role of Hezbollah in Syria and complaining about Irans alleged or real interference are embarassing and invalid considering the fact that the slaughtering of Shia civilians in Pakistan and the continuing deliberate killings of Shia civilians in Iraqi mosques, restaurants, market places and even funeral ceremonies started long before the syrian conflict. In Syria Hezbollah entered the scene long after thousands of salafi or otherwise radical Jihadists had flocked into the country to fight the Syrian army and loyal civilians on purely sectarian grounds.
Below article may help to understand the role of Hezbollah in Syria:
http://radioyaran100words.wordpress.com/2013/06/18/what-hezbollah-is-doing-in-syria-iii/