Teribus, under the terms of the temporary Safwan ceasefire, it (the Safwan ceasefire) became null and void as soon as UNSC Resolution 687 established a permanent ceasefire. This (UNSC Resolution 687) is the ceasefire agreement that Iraq would have had to be in violation of since the Safwan ceasefire had become obsolete many years before the timeframe in question.

Since it was a UN Resolution that was being violated, it was the perogative of the UNSC to determine what the consequences should be, not the perogative of only one UN member nation..