The winds of revolution and war are blowing through this outwardly peaceful Indian Ocean capital, whose new rulers have just opted Marxism-Leninism and declared Maputo a "revolutionary base" for the African nationalist struggle against the white-ruled regimes of southern Africa.

Everywhere in the city, posters, banners and slogans painted on the walls cry out these twin commitments.

The main boulevards, once named for heroes of Portuguese colonialism, now bear names of Communist history - Marx, Lenin, Ho Chi Minh and Mao Tse-tung - and of such favored African leaders as Julius Nyerere and Kenneth Kaunda.

Banners and signs - "Long Live the World Front Against Imperialism," Long Live the African Revolution" and "Workers of the World, Unite" - are strung across the streets or painted on the walls.

Some paintings on buildings across the city, done in the stark, heavy style of socialist realism, potray a figure with a gun clenched in upraised hand charging forward, a symbol of the ongoing African nationalist struggle. Others glorify the toiling peasant and factory worker.

At the entrance to public buildings - the railroad station and even the U.S. embassy - there are big bill-boards for the "people's Newspapers," telling Mozambicans that "work is an act of military and warning them to be on guard against capitalist and imperialist agents in their midst.