Given reduced amalgamated free products of C*-algebras (A,phi) = *(l is an
element ofI)(A(l), phi (l)) and (D,psi) = *(l is an element ofI)(D-l, psi (
l)), an ambedding A curved right arrow D is shown to exist assuming there a
re conditional expectation preserving embeddings A(l) curved right arrow D-
l. This result is extended to show the existence of the reduced amalgamated
free product of certain classes of unital completely positive maps. Finall
y, analogues of the above mentioned results are proved for amagamated free
products of von Neumann algebras.