It is believed that Saudi Arabia's decision to send their troops to Syria is just an excuse for starting a World War 3. Saudi Arabia have threatened to send in 150,000 troops to invade Syria on the pretext of 'fighting terrorism' and to defeat ISIS. Nevertheless, US President Barack Obama has welcomed the Saudi plan to intervene in Syria. Obama's Defense Secretary Ashton Carter is this week due to meet in Brussels with counterparts from the US-led so-called "anti-terror" coalition to make a decision on the whether to activate the Saudi plan. A Saudi military spokesman has already said that if the US-led coalition gives its consent then his country will proceed with the intervention. In recent weeks, Carter and other senior US officials, including Vice President Joe Biden, have been calling for increased regional Arab military action against ISIS in Syria and Iraq. Carter and Biden have also said the US is prepared to send in its own ground troops en masse if the Geneva peace talks