Complex sentence: South Africa's wavering financial and military assistance suddenly became available again, but the Frontline States then abruptly changed tact and turned the Kissinger terms down, saying that any interim period before majority rule was unacceptable.
Split into simpler sentences: South Africa's wavering financial and military assistance suddenly became available again. However, the Frontline States then abruptly changed tact and turned the Kissinger terms down, saying that any interim period before majority rule was unacceptable.