When leading adverbial clause or adjective clause?

This is how I see the sentence:

You have a subject: The truce

You have a verb: started

The verb is modified by: disintegrating

The adverb, disintegrating, is modified by:
last week
when Israeli forces entered Gaza to destroy a tunnel dug by militants

So the when-clause is adverbial.

AnonymousSo the when-clause is adverbial.

I agree.
Could you take a look at the following then?
"In 1936, when I was coming to the end of the 17th year of my life, I packed my bag, said goodbye."
What do you think of "when" here?
Adverbial or Adjective?

[1] The truce started disintegrating last week [when Israeli forces entered Gaza to destroy a tunnel dug by militants].

[2] In 1936, [when I was coming to the end of the 17th year of my life], I packed my bag and said goodbye.

I see these as relative clauses (not adverbials) introduced by the relative

BillJI see these as relative clauses (not adverbials) introduced by the relative word "when". In [1] "when" has "last week" as its antecedent, and in [2], it has "1936" as antecedent. As is typical of when relatives, the antecedent of "when" functions as an adjunct of time within the relative clause.

So is it safe to say that whenever "when" follows an express

JungKim So is it safe to say that whenever "when" follows an expression of time, if you will, such as "last week" and "1936", the "when" automatically leads a relative clause that modifies or supplements the expression of time?

Yes, as a broad outline, I'd go along with that. Here are some other examples:

[1]

How about these?
(1) And that next step comes after the holidays when the White House sits down with Senate and House leaders to turn two bills into one.
(2) You have to come back later when everything is unpacked.

JungKimHow about these?(1) And that next step comes after the holidays when the White House sits down with Senate and House leaders to turn two bills into one.(2) You have to come back later when everything is unpacked.

What do you think, JungKim?

BillJ

BillJWhat do you think, JungKim?

Theoretically speaking:
In (1), either "when" modifies "after the holidays" or it leads an adverbial when-clause.
In (2), either "when" modifies "later" or it leads an adverbial when-clause.
Now the problem is that neither "after the holidays" nor "later" can ever be a noun and therefore that the when-clause cannot

JungKimTheoretically speaking:In (1), either "when" modifies "after the holidays" or it leads an adverbial when-clause.In (2), either "when" modifies "later" or it leads an adverbial when-clause Now the problem is that neither "after the holidays" nor "later" can ever be a noun and therefore that the when-clause cannot be a relative clause in either case.Am I right?I don'