BERLIN (AP) _ Here are excerpts from Friday's news conference with Warsaw Pact general secretary Herbert Krolikowski, an East German, and from the communique issued at the close of the summit. The news conference was conducted in German and translated by an official translator. An English-languag e version of the communique was issued.

News conference:

We have decided to outline the foundations of our military doctrine, which is exclusively defensive in nature. Its goal is to prevent any war, conventional or nuclear. We will never, under any circumstances, open hostilities, and we will never be the first to use nuclear weapons.

The states of the Warsaw Treaty will maintain forces and arms only to the extent they are necessary to prevent an attack on their alliance or a member of the alliance. In other words, the basic principle should be not to have more forces and arms than are absolutely necessary for the defense and maintenance of peace in the world.

Therefore the states of the Warsaw Treaty propose to the NATO states to conduct consultations over military doctrine, as a real contribution to developing modes of defense.

In the area of nuclear disarmament, they (Warsaw Pact leaders) spoke out for the following practical steps:

-The immediate conclusion of an accord on the elimination of all American and Soviet medium-range missiles in Europe on the basis of the fundamental agreement reached in Reykjavik.

-Simultaneous elimination of the Soviet and American operative-tactical missiles in Europe.

-The commencement of negotiations to solve the problem of tactical nuclear means, including the tactical missiles in Europe.

We are ready to negotiate over every category of weapons.''

From the communique:

The participants in the session ... believe that world developments, changes in international relations, the increasing interdependence of states, advances in science and technology and the existence of weapons of unprecedented destructive power call for a new way of thinking, a new approach to the issues of war and peace, disarmament and other complex global and regional problems, and for the abandonment of the concept of 'nuclear deterrence.'

In a nuclear war, there can be no winners.

For this reason, the parties of the Warsaw Treaty reaffirm their belief that the overriding task is to prevent war...to put an end to the arms race and to move towards concrete measures of disarmament, primarily in the nuclear field, with the aim of achieving complete and general disarmament.

This requires a pooling of efforts of all states and all peace-loving forces, greater trust in relations among states...and a correct perception of each others' concerns, objectives and intentions as regards the military sphere.

The participants in the session consider that it is now possible to adopt the following practical steps in the field of nuclear disarmament:

-Immediate conclusion of an agreement on eliminating American and Soviet medium-range missiles in Europe on the basis of the fundamental understanding reached at Reykjavik. Following its signing, the Soviet missiles emplaced in the GDR (East Germany) and Czechoslovakia in response to the deployment of American medium-range missiles in Western Europe will be withdrawn with the agreement of the governments of these countries.

-Simultaneous elimination of Soviet and U.S. shorter-range missiles in Europe and negotiations on such missiles stationed in the eastern parts of the Soviet Union and on the territory of the United States.

-Settlement of the issue of tactical nuclear weapons, including tactical missiles, in Europe through multilateral negotiations as proposed by the Warsaw Treaty states at their meeting in Budapest.

-Agreement on radical reductions in offensive strategic weapons coupled with a strengthening of the ABM Treaty. The allied socialist countries advocate a 50 percent reduction in the offensive-strategic weapons of the USSR and the USA within a period of five years and negotiations on subsequent reductions.

-A comprehensive ban on nuclear weapons. The Warsaw Treaty states propose that extensive negotiations be started without further delay to work out pertinent accords.

The states represented at the session propose to all the states participating in the Conference on Security and Cooperation in Europe that a meeting of their foreign ministers should be held to adopt a decision on initiating extensive negotiations on drastic reductions in armed forces, conventional armaments and tactical nuclear weapons in Europe coupled with appropriate cutbacks in military expenditures.

These talks should also cover a number of high priority measures designed to lower the level of military confrontation and avert the danger of surprise attack, to ensure the mutual withdrawal of the most dangerous offensive weapons from the zone of direct contact between the two military alliances and to reduce the concentration of armed forces and armaments in this zone to an agreed minimum level.

The best forum to discuss these issues would be at the second stage of the Conference on Confidence- and Security-Building Measures and Disarament in Europe.

But other options for dealing with disarmament issues, especially within the CSCE process, including the convening of a special forum, are also possible...

The parties to the Warsaw Treaty hold the view that the reduction in military confrontation in Europe should be a continuous process with the military balance being secured at the lowest possible level at each stage...

They state their preparedness to have the imbalance that has arisen in certain elements redressed in the course of the reductions proposing that the side which has an advantage over the other side make the appropriate cutbacks.''