２００６年９月の軍事クーデターで失脚、事実上亡命中だったタイのタクシン元首相が２８日、約１年半ぶりに帰国した。

、、。

Thaksin, the former Thai prime minister who was ousted in the September 2006 military coup and had been in de facto exile, returned to Thailand on the 28th, roughly a year and a half after leaving.

Literal

2006-year 9-month [of-の] military-coup [with-で] fall-from-power, de-facto in-exile was Thailand [of-の] Thaksin former-PM [subject-が] 28-day, approximately 1-year-half [since-ぶりに] returned-to-country.

Classic news lede register. A long pre-modifying clause attaches to タクシン元首相: [2006年9月の軍事クーデターで失脚] and [事実上亡命中だった] are both relative clauses describing Thaksin. ~ぶりに 'after an interval of,' attached to a time expression, signals that this much time has passed since a similar event last occurred (leaving the country). 約 'approximately' is the formal written equivalent of だいたい. The sentence packs biography, exile status, and the return event into a single SOV frame.