ANKARA/AMMAN, Oct 30 (Reuters) – Syrian army troops clashed with Turkish forces near the border town of Ras al Ain on Wednesday, Syrian state media reported, as Ankara said it reserved the right to launch another cross-border offensive against Kurdish YPG militia. The state media gave no details but Turkish-backed rebels said similar, intermittent clashes had occurred in recent days with Syrian troops south of the town, which Turkey seized from Syrian Kurdish-led forces earlier this month.