Zg641. We found the Fort Frank Waterdam in the Sinalang Valley.
Starting at 9:30 a.m. on February 20 Fort Frank along with Fort Mills and Hughes was subjected to a shelling that saw a round hitting each fort on an average of one a minute until late that afternoon. The next day was peaceful as the Japanese ceased firing to reposition their artillery. Battery Frank North however was active on February 29 taking under fire Japanese troops near Ternate and Maragondon on the Cavite mainland while the 75mm guns fired on Japanese troops at Calumpang on February 26. The lull which now took place was put to good use by Fort Frank and the other forts as they strengthened fortifications and repositioned guns.