11.   Their arrival marked the most direct participation yet by the Kremlin, which had let Dagestani officials negotiate with the gunmen.

12.   Their arrival would mark the most direct participation yet by the Kremlin, which has preferred to let Dagestani officials negotiate with the gunmen.

13.   His arrival marked the first ministerial-level visitor from Canada since Ottawa suspended such visits in July to avoid angering China.

14.   His arrival will mark the first official visit by a French army chief of staff to South Africa.

15.   Their arrival marked the first visible presence of the new Kigali administration in the humanitarian safety zone recently evacuated by French troops in southwest Rwanda.

16.   Their arrival marks growing rocket interest in Kiribati, spread across the equator, and in a prime position for launching geostationary orbit satellites.