... 2. If, however, a State does not know of the occurrence of the damage or has not been
able to identify the launching State which is liable, it may present a claim within one
year following the date on which it learned of the aforementioned facts; however, this
period shall in no event exceed one year following the date on which the State could
reasonably be expected to have learned of the facts through the exercise of duediligence. ...
... 3. The time-limits specified in paragraphs 1 and 2 of this Article shall apply even if
the fullextent of the damage may not be known. In this event, however, the claimant State
shall be entitled to revise the claim and submit additional documentation after the
expiration of such time-limits until one year after the fullextent of the damage is
known. ...
... 3. The time-limits specified in paragraphs 1 and 2 of this Article shall apply even if
the fullextent of the damage may not be known. In this event, however, the claimant State
shall be entitled to revise the claim and submit additional documentation after the
expiration of such time-limits until one year after the fullextent of the damage is
known. ...