Move comes amid strained relations between Riyadh and Washington, with the latter moving its air defense systems from kingdom and removing Iranian proxy Houthis from terror list

Recent Russian strikes, latest with supersonic 'Kinzhal' missiles, show existing systems — like the Patriot and S-300 — might not be enough to counter Moscow's arsenal

Pentagon says deals will help bolster regional partners while countering Iran and other hostile actors, amid flurry of drone and missile attacks blamed on rebels in Yemen, Iraq

Patriot batteries, other armaments to protect American troops at key bases; US State Department offers $10 million for info on Hezbollah leader coordinating Iraqi militias

Ankara says it wants no 'face-off' with Moscow as tensions spiral in Idlib, claims it might receive Patriot defense system, despite earlier purchase of Russian S-400 platform

Turkish leader states intention to follow up on matter with his American counterpart at the UNGA; says EU must give more support for Syrian refugees or 'we will open the gates'

Iranian Guards chiefs dismiss US 'psychological war,' say aircraft carrier deployed to region not a threat, but a target; 'If they make a move, we will hit them in the head'

'Things are heating up,' Yuval Steinitz warns as US aircraft carrier sails toward Persian Gulf; Iranian Guards chief dismisses US 'psychological war'

America maintains a vast network of bases, troops and assets throughout the region, to the chagrin of Tehran

US president said Thursday he would like the Iranians to call him; report comes after Pentagon says will move Patriot missile defense battery to Middle East