A.
DEFINITION OF INTERNATIONAL LAW
International law governs relations between independent states.
                           The rules of law
  binding upon states/ therefore emanate from their own will as
                      expressed in conventions/
    [treaties] or by usages generally accepted as expressing
                   principles of law established in
    order to regulate the relations between these co-existing
                    independent communities or
  with a view to the achievement of common aims. - SS Lotus
                       Case (France v Turkey)
     The national territory comprises the Philippine
archipelago, with all the islands and waters embraced
     therein, and all other territories over which the
Philippines has sovereignty or jurisdiction, consisting
of its terrestrial, fluvial, and aerial domains, including
 its territorial sea, the seabed, the subsoil, the insular
    shelves, and other submarine areas. The waters
  around, between, and connecting the islands of the
      archipelago, regardless of their breadth and
  dimensions, form part of the internal waters of the
                Philippines. - Art 1. CONSTI
  Should forge or counterfeit any coin or currency
  note of the Philippine Islands or obligations and
    securities issued by the Government of the
         Philippine Islands. - Art 2 (2) RPC
                                                                            A. CONC
                 B. OBLIGATIONS ERGA OMNES
     When a State admits into its territory foreign investments or
foreign nationals, whether natural or juristic persons, it is bound to
 extend to them the protection of the law and assumes obligations
 concerning the treatment to be afforded them. These obligations,
  however, are neither absolute nor unqualified. In particular, an
essential distinction should be drawn between the obligations of a
 State towards the international community as a whole, and those
 arising vis-a-vis another State in the field of diplomatic protection.
  By their very nature the former are the concern of all States. In
   view of the importance of the rights involved, all States can be
held to have a legal interest in their protection; they are obligations
   erga omnes. - Barcelona Traction, Light and Power Co Ltd
                Case (Belgium v. Spain, (1970), ICJ
                                Rep. 4
The Judgment seems to draw a distinction between obligations of
  a State erga omnes, obligations of a State which exist towards
      certain other States under general international law, and
obligations of a State which only exist towards a State with which it
has entered into "treaty stipulations". This distinction can of course
  be drawn. But it is still difficult to hold that this distinction would
 necessarily correspond to an a priori classification in accordance
  with the nature of the interests protected by such obligations, a
    classification which is already in itself a fairly doubtful one. -
Barcelona Traction, Light and Power Co Ltd Case (Belgium v.
                           Spain, (1970), ICJ
                                   Rep. 4
It is certainly not merely bilateral relations that are in issue in such
   a case, since a State's obligation to keep within the limits of its
   jurisdiction on the international plane is, without any doubt, an
 obligation erga omnes. - Barcelona Traction, Light and Power
             Co Ltd Case (Belgium v. Spain, (1970), ICJ
                                 Rep. 4
                          A. CONCEPTS
                      C. JUS COGENS
 Article 53 Treaties conflicting with a peremptory norm of
general international law (“jus cogens”) A treaty is void if,
at the time of its conclusion, it conflicts with a peremptory
   norm of general international law. For the purposes of
  the present Convention, a peremptory norm of general
 international law is a norm accepted and recognized by
   the international community of States as a whole as a
  norm from which no derogation is permitted and which
  can be modified only by a subsequent norm of general
    international law having the same character. - VCLT
 Article 64 Emergence of a new peremptory
   norm of general international law (“jus
   cogens”) If a new peremptory norm of
   general international law emerges, any
 existing treaty which is in conflict with that
   norm becomes void and terminates. -
                    VCLT
 D. CONCEPT OF AEGOU ET BONO - Ex aequo et bono in
   justice and fairness, according to what is fair and jus
 Under Article 38(2) of the Statute of the ICJ, equity means that
                          a decision may
   be made ex aequo et bono, i.e. the court should decide the
                         case not on legal
  considerations but solely on what is fair and reasonable in
                      the circumstances of
    the case (equity contra legem). However, the parties must
                        expressly authorise
the court to decide a case ex aequo et bono. So far, the ICJ has
                          never delivered
        any judgment based on Article 38(2) of its Statute.
   Article 38(2) of the Statute of the ICJ allows the ICJ, if both
                   parties to a dispute agree, to
  decide a case ex aequo et bono, i.e. the court should decide
               the case not on legal considerations
 but solely on what is fair and equitable in the circumstances of
                  the case (equity contra legem).
In the Gulf of Maine Case (Canada v US) 98 the Court held that
                 while a decision ex aequo et bono
would permit a court or tribunal to examine socio-economic and
                      political considerations,
 equity within the meaning of Article 38(1)(c) as a component of
                       a legal decision would
    involve the Court in taking a decision on the basis of legal
                              reasoning
E. RULES OF INTERPRETATION OF INTERNATIONAL LAW
      B. INTERNATIONAL LAW AND NATIONAL LAW - A. TWO D
MONISM AND DUALISM
AL LAW - A. TWO DIFFERENT THEORIES OF THE RELATIONSHIP BETWEEN INTERNATIONAL LAW
                 DOCTRINE OF INCORPORATION AND TRANSFORMATION
RNATIONAL LAW
                PRINCIPLE OF AUTO LIMITATION
             It is to be admitted that any state may, by its
         consent, express or implied, submit to a restriction
             of its sovereign rights. There may thus be a
        curtailment of what otherwise is a power plenary in
           character. That is the concept of sovereignty as
          auto-limitation, which, in the succinct language of
            Jellinek, "is the property of a state-force due to
           which it has the exclusive capacity of legal self-
        determination and self-restriction."7 A state then, if
        it chooses to, may refrain from the exercise of what
           otherwise is illimitable competence. - Reagan v.
                         CIR, G.R. No. L-26379,
                           December 27, 1969
       ARTICLE 38 OF VCLT
                      ARTICLE 38
   RULES IN A TREATY BECOMING BINDING ON
    THIRD STATES THROUGH INTERNATIONAL
                  CUSTOM
Nothing in Articles 34 to 37 precludes a rule set forth in
a treaty from becoming binding upon a third State as a
   customary rule of international law, recognized as
                          such.
   A treaty can be defined as an agreement (usually
             written) between two or more
 States, governed by international law and intended to
                create legal obligations.
THE MAIN FEATURES OF THE
 1969 VIENNA CONVENTION
 OF THE LAW OF TREATIES -
           P 155
    THE FUNDAMENTAL
PRINCIPLES OF THE LAW OF
        TREATIES
"Rebus sic stantibus" is a Latin phrase meaning "things
thus standing." In law, it refers to the principle that a
contract or treaty is binding only as long as the
fundamental circumstances surrounding its creation
remain unchanged. This doctrine allows for the revision
or termination of a contract when unforeseen and
extraordinary changes in circumstances make
performance excessively difficult or inequitable.
THE DEFINITION OF A TREATY
     UNDER THE VCLT
CONCLUSION OF TREATIES
RESERVATION OF TREATIES
                         B. SOUR
  INTERPRETATIVE AND
      CONDITIONAL
    INTERPRETATIVE
DECLARATIONS AND THEIR
   RELATIONSHIP WITH
     RESERVATIONS
        B. SOURCES - A. ARTICLE 38 OF THE STATUTE OF THE INTERNATIONA
                                           TREATIES
  ENTRY INTO FORCE,
DEPOSIT, REGISTRATION
 AND PUBLICATION OF
      TREATIES
8 OF THE STATUTE OF THE INTERNATIONAL COURT OF JUSTICE
           TREATIES
                VALIDITY OF TREATIES
APPLICATION OF TREATIES
    AMENDMENT AND
MODIFICATION OF TREATIES
INTERPRETATION OF TREATIES
   TERMINATION AND
SUSPENSION OF TREATIES
SETTLEMENT OF DISPUTES
HARD LAW AND SOFT LAW