In february 1925 , when dr . sun was ill , chen jhiung - ming seized the opportunity to invade canton from swatow . luckily , the late president chiang led his three thousand huang - pu troops and suppressed the szechwan and hunan rebellion 十四年二月,陈炯明以国父北上卧病,竟自潮汕进攻广州,蒋公督率军校三千人东征,继复回师广州,戡定了滇桂军之乱。