 
         CALCUTTA.-Consider this scenario for an American  intervention.
Our ally: the 75 million Bengalis of East Pakistan  who, with considerable justification, consider  themselves victims of two decades of political and  economic exploitation by the Punjabis of West Pakistan.  Bengali leader Sheikh Mujibur Rahman and his moderate,  generally pro-Western Awami League recently won national  elections in Pakistan. The Bengalis were then savagely  attacked by the Punjabi controlled Pakistan army. Many  Bengalis are now determined to fight for an independent  Bengal nation (Bangla Desh) but they lack the military  know-how and means with which to fight.
Our enemy: the 70,000 or so West Pakistani troops  seeking to suppress the Bengali freedom movement and  reoccupy East Pakistan. They are fighting for an  autocratic military regime that has close relations with  China. They have virtually no support among the Bengalis  they seek to rule. They are flight-pendent solely on sea  and air supply routes, without the economic resources  required for a long and costly war.
An interventionist's dream. First some strong words  from Washington, then a few destroyers assigned to  cruise the East Pakistan coast. Some dramatic  overflights by American jets. If necessary, a naval  blockade to cut off Pakistan army supplies. Perhaps some  air-dropped American carbines for the Bengalis. Only as  a last resort some air strikes on Pakistan army bases in  East Pakistan. After that, it's only a matter of passing  out miracle rice seed to the happy liberated peasants of  Bangla Desh - that new pro-Western bastion astride the  strategic crossroads where East and Central Asia meet. If only Vietnam had been East Pakistan.
A NATURAL VICTIM
As it happened, of course, Bangla Desh did not even  rate weak words of support or sympathy from Washington.  Presumably the last thing America needs these days is  another war, even a winnable one in a worthy cause. And  even if Uncle Sam still considered himself the world's  policeman, it's doubtful that he would arrest West  Pakistan for assault and battery against the Bengalis,  East Pakistan is simply one of those parts of the world  that fails to provoke foreign passions. Overpopulated  and impoverished, it encroaches on the world's  consciousness only when stricken by a calamity of  Biblical proportions, like last fall's fearful flood  that claimed up to half a million lives. An East  Pakistan earthquake that killed only 10,000 would  probably rate less attention than a three-car collision  on the Jersey Turnpike, East Pakistan is one of the  world's natural victims.
All this is only to say the obvious: that American  foreign policy doesn't follow moral imperatives. Neither  does any other nation's. When the cause of Bangla Desh  finally forced its way to the attention of the world's  great powers they all reacted with what's called  cynicism among men but passes for pragmatism among  nations,
The politics of the Indian subcontinent were  complicated enough before the cause of Bangla Desh came  along. India and Pakistan have been enemies since they  were carved out of the subcontinent's communal conflicts  in 1947. Russia has edged close to India in recent  years. China, for national rather than ideological  reasons, is tied to Pakistan. Russia and China, of  course, are at odds. America, worried over Soviet  influence in India and Chinese influence in Pakistan,  has tried to remain friendly with both.
What, then, are the politics of pragmatism of those  nations involved with the Bangla Desh cause and of those  that have sought to stay uninvolved?
For Pakistan there were several choices: To let  democracy have its way, which would have meant a united  Pakistan led, for the first time, by the Bengali  majority rather than the Punjabi minority. To grant East  Pakistan independence and seek good relations with the  new sister state of Bangla Desh. To forcibly resubjugate  East Pakistan. Pakistan opted for the third solution.  Its army moved rapidly and ruthlessly, with tactics that  included not only wanton slaughter but also systematic  slaying of the Bengali middle class: politicians,  professional men, students and civil servants. These are  precisely the people needed to keep an administration  and an economy functioning, in a conquered territory or  a new nation.
In the short run the Pakistan army may well be able to  maintain control of East Pakistan-now a hostile,  occupied territory. But how to patch up the East  Pakistan economy? How to support the cost of the  occupation army? How, in the long run, to avoid being  bled by a guerrilla war?
Perhaps even the Pakistanis are doubtful about their  long-term prospects. But if they suspect that they will  have to pull out of East Pakistan some year soon, why  should they worry about killing off moderate Bengali  leadership, about the Bangla Desh movement thus falling  into militant leftist hands Pakistan could then at least  leave a chaotic, Communist-veering Bangla Desh ss a  permanent plague on neighboring India. or so the Indians  fear.
A SYMPATHETIC INDIA
For many reasons, India has been openly sympathetic  with the Bangla Desh cause. Pakistan 18 an enemy, and  half an enemy is better than a whole one. An independent  Bengal nation, under moderate leadership, might even be  friendly to India. As a democracy, India is subject to  public pressures, and articulate segments of that  public, particularly in West Bengal, have demanded  intervention. The sooner India provides support-arms  training, border sanctuaries for a Bangla Desh  liberation army, the more likely it is that the Bangla  Desh movement will remain under moderate leadership. 
Some such aid is already being given. And if a more  active Indian role risks war with Pakistan, it would  suit some aggressive Indian army commanders just fine, Yet India failed to extend diplomatic recognition to  Bangla Desh and has moved only slowly and cautiously in  giving military assistance, Why? Bangla Desh would have  had to have been recognized very quickly, because once  the Pakistan army began moving the liberation army  collapsed. Only a month after the civil war begun, on  March 25, the provisional government of Bangla Desh  could venture no further into East Pakistan than a mango  grove 300 meters from the Indian border, Indian policy  makers, whatever their virtues, are not noted for quick  decisionmaking. By late April India would have been  recognizing what amounted to a government in exile. And  no other countries would have followed suit.
The poor performance of the Bangla Desh leaders and  their makeshift liberation movement was a disappointment  even to strong Indian sympathizers. Some of them  realized that channeling aid to this movement would be  far from simple. Giving guns would not be enough.  Training and organization are needed. And the Indian  army is no great repository of wisdom on the waging of  guerrilla wars.
What even of the simple problems, like insuring that  guns given to the liberation army don't end up in  Communist hands?
Then too, the risk of a full-scale war with Pakistan,  which large-scale Indian military assistance might  entail, is not to be taken lightly. India probably would  win such a war, but it would divert Indian resources  from the monumental domestic problems ,that Prime  Minister Indira Gandhi was just re-elected to try to  solve. And then there's China, which might support  Pakistan with more than words. India's mountain passes  along the Chinese border may be much better defended now  than at the time of the 1962 Sino-Indian border war, but  few sane Indians seek a rematch. ( Nor, probably, does  domestic oriented China.)
Finally, some Indians are concerned that a new ethnic  state of Bangla Desh would provide a potent impetus for  independence movements among the many ethnic groups in  the patchwork Indian nation.
Red China, the proponent and patron of liberation wars  chose to side verbally with West Pakistan's decidedly  unrevolutionary military regime in its suppression of a  popular revolution. An outrageous reversal of  revolutionary doctrine, or is it? To Chairman Mao,  liberation wars are not won by the likes of Sheikh  Mujibur and the bourgeois bureaucrats of his Awami  League who have led the Bangla Desh movement to date.  Why not let the Pakistan army kill off these bourgeois  nationalists, the sooner to see them replaced by leftist  militants and a "people's war" that follows the gospel  of Chairman Mao? That may be a long time coming, for  East Pakistan's Communists are still a small force and  Peking's policy is to let even approved revolutionaries  help themselves. But China is nothing if not patient.
In the meantime China has cemented its friendship with  West Pakistan, a valuable national ally as a  counterbalance to India (with its Soviet ties) and as a  solid link in Peking's chain of contacts with the rest  or the noncommunist underdeveloped world. China has  given Pakistan large amounts of economic and military  assistance over the years, including a $200 million loan  late last year, and Peking, like other nations, does not  lightly write off such investments.
So China, in the short run, has backed an old friend  and picked a winner in the process. And China's longer  run options are still open. By the time China is ready  to commit itself to a Communist insurgency in, East  Pakistan the West Pakistanis may already have decided to  abandon the area.
The Soviets were openly critical of West Pakistan's  actions in East Pakistan and called for an end to the  bloodshed. But the reasons probably have much more to do  with Soviet friendship with India and hostility to China  than with any sense of brotherhood with the Bengalis.  And Soviet sympathies have not been so strongly  expressed as to ruin relations with West Pakistan.
WHILE FROM THE U.S.
From the United States, silence. And in a situation like  this, silence naturally supports the status quo - which is  not a Bengal nation. There are probably several reasons:  the simple wish to avoid any new foreign entanglements,  a fear of reducing U.S, influence in West Pakistan and  thus increasing that of the Chinese, a tendency to stick  with a country in which the U.S., too, has invested much  military and economic aid. Perhaps there's also another,  somewhat subliminal, reason. The West Pakistanis, in  addition to being a known quantity, are a rather  compatible one for U.S. policy makers. Military men with  handlebar mustaches and Sandhurst accents run a  superficially efficient regime with clear lines of  authority. It is a nation that can use American dollars  to build impressive dams, train its soldiers to use  American weapons and teach its farmers to grow miracle  wheat. It's not a mysterious corner of Asia teeming with  little black people. When American VIPs go to Pakistan,  it's to see parades in Islamabad (In the West), not to  see poverty in Dacca (In the East). Lyndon Johnson  invited a West Pakistan camel driver to the White House,  not a Bengali rickshaw puller.
It's several years too soon to say whether or not  America, China, Russia, India or Pakistan made the right  moves in the spring of 1971. But It's at least a  reasonable bet that some kind of new nation will evolve  in the years to come. When that happens, ambassadors  from Washington, Peking, Moscow and Delhi will be  standing at attention in Dacca for the singing of the  Bangla Desh national anthem, "My Golden Bangla Desh, I  Love You." And some ambassadors, of course, will be in  better favor than others.